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update Underscore.js dependency

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Jeff Williams 2014-05-29 22:54:54 -04:00
parent 57b562f1b4
commit 9555f6c43f
5 changed files with 371 additions and 201 deletions
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5
LICENSE.md
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@ -365,10 +365,11 @@ https://github.com/geraintluff/tv4
Underscore.js is distributed under the MIT license, which is reproduced above. Underscore.js is distributed under the MIT license, which is reproduced above.
Copyright (c) 2009-2012 Jeremy Ashkenas, DocumentCloud. Copyright (c) 2009-2014 Jeremy Ashkenas, DocumentCloud and Investigative
Reporters & Editors.
The source code for Underscore.js is available at: The source code for Underscore.js is available at:
https://github.com/documentcloud/underscore https://github.com/jashkenas/underscore
## wrench-js ## ## wrench-js ##

3
node_modules/underscore/LICENSE generated vendored
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@ -1,4 +1,5 @@
Copyright (c) 2009-2012 Jeremy Ashkenas, DocumentCloud Copyright (c) 2009-2014 Jeremy Ashkenas, DocumentCloud and Investigative
Reporters & Editors
Permission is hereby granted, free of charge, to any person Permission is hereby granted, free of charge, to any person
obtaining a copy of this software and associated documentation obtaining a copy of this software and associated documentation

35
node_modules/underscore/package.json generated vendored
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@ -15,11 +15,36 @@
}, },
"repository": { "repository": {
"type": "git", "type": "git",
"url": "git://github.com/documentcloud/underscore.git" "url": "git://github.com/jashkenas/underscore.git"
}, },
"main": "underscore.js", "main": "underscore.js",
"version": "1.4.2", "version": "1.6.0",
"readme": " __\n /\\ \\ __\n __ __ ___ \\_\\ \\ __ _ __ ____ ___ ___ _ __ __ /\\_\\ ____\n /\\ \\/\\ \\ /' _ `\\ /'_ \\ /'__`\\/\\ __\\/ ,__\\ / ___\\ / __`\\/\\ __\\/'__`\\ \\/\\ \\ /',__\\\n \\ \\ \\_\\ \\/\\ \\/\\ \\/\\ \\ \\ \\/\\ __/\\ \\ \\//\\__, `\\/\\ \\__//\\ \\ \\ \\ \\ \\//\\ __/ __ \\ \\ \\/\\__, `\\\n \\ \\____/\\ \\_\\ \\_\\ \\___,_\\ \\____\\\\ \\_\\\\/\\____/\\ \\____\\ \\____/\\ \\_\\\\ \\____\\/\\_\\ _\\ \\ \\/\\____/\n \\/___/ \\/_/\\/_/\\/__,_ /\\/____/ \\/_/ \\/___/ \\/____/\\/___/ \\/_/ \\/____/\\/_//\\ \\_\\ \\/___/\n \\ \\____/\n \\/___/\n\nUnderscore.js is a utility-belt library for JavaScript that provides\nsupport for the usual functional suspects (each, map, reduce, filter...)\nwithout extending any core JavaScript objects.\n\nFor Docs, License, Tests, and pre-packed downloads, see:\nhttp://underscorejs.org\n\nMany thanks to our contributors:\nhttps://github.com/documentcloud/underscore/contributors\n", "devDependencies": {
"_id": "underscore@1.4.2", "docco": "0.6.x",
"_from": "underscore" "phantomjs": "1.9.0-1",
"uglify-js": "2.4.x"
},
"scripts": {
"test": "phantomjs test/vendor/runner.js test/index.html?noglobals=true",
"build": "uglifyjs underscore.js -c \"evaluate=false\" --comments \"/ .*/\" -m --source-map underscore-min.map -o underscore-min.js",
"doc": "docco underscore.js"
},
"licenses": [
{
"type": "MIT",
"url": "https://raw.github.com/jashkenas/underscore/master/LICENSE"
}
],
"files": [
"underscore.js",
"underscore-min.js",
"LICENSE"
],
"readme": " __\n /\\ \\ __\n __ __ ___ \\_\\ \\ __ _ __ ____ ___ ___ _ __ __ /\\_\\ ____\n /\\ \\/\\ \\ /' _ `\\ /'_ \\ /'__`\\/\\ __\\/ ,__\\ / ___\\ / __`\\/\\ __\\/'__`\\ \\/\\ \\ /',__\\\n \\ \\ \\_\\ \\/\\ \\/\\ \\/\\ \\ \\ \\/\\ __/\\ \\ \\//\\__, `\\/\\ \\__//\\ \\ \\ \\ \\ \\//\\ __/ __ \\ \\ \\/\\__, `\\\n \\ \\____/\\ \\_\\ \\_\\ \\___,_\\ \\____\\\\ \\_\\\\/\\____/\\ \\____\\ \\____/\\ \\_\\\\ \\____\\/\\_\\ _\\ \\ \\/\\____/\n \\/___/ \\/_/\\/_/\\/__,_ /\\/____/ \\/_/ \\/___/ \\/____/\\/___/ \\/_/ \\/____/\\/_//\\ \\_\\ \\/___/\n \\ \\____/\n \\/___/\n\nUnderscore.js is a utility-belt library for JavaScript that provides\nsupport for the usual functional suspects (each, map, reduce, filter...)\nwithout extending any core JavaScript objects.\n\nFor Docs, License, Tests, and pre-packed downloads, see:\nhttp://underscorejs.org\n\nUnderscore is an open-sourced component of DocumentCloud:\nhttps://github.com/documentcloud\n\nMany thanks to our contributors:\nhttps://github.com/jashkenas/underscore/contributors\n",
"readmeFilename": "README.md",
"bugs": {
"url": "https://github.com/jashkenas/underscore/issues"
},
"_id": "underscore@1.6.0",
"_from": "underscore@~1.6.0"
} }

525
node_modules/underscore/underscore.js generated vendored
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@ -1,6 +1,6 @@
// Underscore.js 1.4.2 // Underscore.js 1.6.0
// http://underscorejs.org // http://underscorejs.org
// (c) 2009-2012 Jeremy Ashkenas, DocumentCloud Inc. // (c) 2009-2014 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
// Underscore may be freely distributed under the MIT license. // Underscore may be freely distributed under the MIT license.
(function() { (function() {
@ -8,7 +8,7 @@
// Baseline setup // Baseline setup
// -------------- // --------------
// Establish the root object, `window` in the browser, or `global` on the server. // Establish the root object, `window` in the browser, or `exports` on the server.
var root = this; var root = this;
// Save the previous value of the `_` variable. // Save the previous value of the `_` variable.
@ -21,12 +21,12 @@
var ArrayProto = Array.prototype, ObjProto = Object.prototype, FuncProto = Function.prototype; var ArrayProto = Array.prototype, ObjProto = Object.prototype, FuncProto = Function.prototype;
// Create quick reference variables for speed access to core prototypes. // Create quick reference variables for speed access to core prototypes.
var push = ArrayProto.push, var
slice = ArrayProto.slice, push = ArrayProto.push,
concat = ArrayProto.concat, slice = ArrayProto.slice,
unshift = ArrayProto.unshift, concat = ArrayProto.concat,
toString = ObjProto.toString, toString = ObjProto.toString,
hasOwnProperty = ObjProto.hasOwnProperty; hasOwnProperty = ObjProto.hasOwnProperty;
// All **ECMAScript 5** native function implementations that we hope to use // All **ECMAScript 5** native function implementations that we hope to use
// are declared here. // are declared here.
@ -61,11 +61,11 @@
} }
exports._ = _; exports._ = _;
} else { } else {
root['_'] = _; root._ = _;
} }
// Current version. // Current version.
_.VERSION = '1.4.2'; _.VERSION = '1.6.0';
// Collection Functions // Collection Functions
// -------------------- // --------------------
@ -74,20 +74,20 @@
// Handles objects with the built-in `forEach`, arrays, and raw objects. // Handles objects with the built-in `forEach`, arrays, and raw objects.
// Delegates to **ECMAScript 5**'s native `forEach` if available. // Delegates to **ECMAScript 5**'s native `forEach` if available.
var each = _.each = _.forEach = function(obj, iterator, context) { var each = _.each = _.forEach = function(obj, iterator, context) {
if (obj == null) return; if (obj == null) return obj;
if (nativeForEach && obj.forEach === nativeForEach) { if (nativeForEach && obj.forEach === nativeForEach) {
obj.forEach(iterator, context); obj.forEach(iterator, context);
} else if (obj.length === +obj.length) { } else if (obj.length === +obj.length) {
for (var i = 0, l = obj.length; i < l; i++) { for (var i = 0, length = obj.length; i < length; i++) {
if (iterator.call(context, obj[i], i, obj) === breaker) return; if (iterator.call(context, obj[i], i, obj) === breaker) return;
} }
} else { } else {
for (var key in obj) { var keys = _.keys(obj);
if (_.has(obj, key)) { for (var i = 0, length = keys.length; i < length; i++) {
if (iterator.call(context, obj[key], key, obj) === breaker) return; if (iterator.call(context, obj[keys[i]], keys[i], obj) === breaker) return;
}
} }
} }
return obj;
}; };
// Return the results of applying the iterator to each element. // Return the results of applying the iterator to each element.
@ -97,11 +97,13 @@
if (obj == null) return results; if (obj == null) return results;
if (nativeMap && obj.map === nativeMap) return obj.map(iterator, context); if (nativeMap && obj.map === nativeMap) return obj.map(iterator, context);
each(obj, function(value, index, list) { each(obj, function(value, index, list) {
results[results.length] = iterator.call(context, value, index, list); results.push(iterator.call(context, value, index, list));
}); });
return results; return results;
}; };
var reduceError = 'Reduce of empty array with no initial value';
// **Reduce** builds up a single result from a list of values, aka `inject`, // **Reduce** builds up a single result from a list of values, aka `inject`,
// or `foldl`. Delegates to **ECMAScript 5**'s native `reduce` if available. // or `foldl`. Delegates to **ECMAScript 5**'s native `reduce` if available.
_.reduce = _.foldl = _.inject = function(obj, iterator, memo, context) { _.reduce = _.foldl = _.inject = function(obj, iterator, memo, context) {
@ -119,7 +121,7 @@
memo = iterator.call(context, memo, value, index, list); memo = iterator.call(context, memo, value, index, list);
} }
}); });
if (!initial) throw new TypeError('Reduce of empty array with no initial value'); if (!initial) throw new TypeError(reduceError);
return memo; return memo;
}; };
@ -130,7 +132,7 @@
if (obj == null) obj = []; if (obj == null) obj = [];
if (nativeReduceRight && obj.reduceRight === nativeReduceRight) { if (nativeReduceRight && obj.reduceRight === nativeReduceRight) {
if (context) iterator = _.bind(iterator, context); if (context) iterator = _.bind(iterator, context);
return arguments.length > 2 ? obj.reduceRight(iterator, memo) : obj.reduceRight(iterator); return initial ? obj.reduceRight(iterator, memo) : obj.reduceRight(iterator);
} }
var length = obj.length; var length = obj.length;
if (length !== +length) { if (length !== +length) {
@ -146,15 +148,15 @@
memo = iterator.call(context, memo, obj[index], index, list); memo = iterator.call(context, memo, obj[index], index, list);
} }
}); });
if (!initial) throw new TypeError('Reduce of empty array with no initial value'); if (!initial) throw new TypeError(reduceError);
return memo; return memo;
}; };
// Return the first value which passes a truth test. Aliased as `detect`. // Return the first value which passes a truth test. Aliased as `detect`.
_.find = _.detect = function(obj, iterator, context) { _.find = _.detect = function(obj, predicate, context) {
var result; var result;
any(obj, function(value, index, list) { any(obj, function(value, index, list) {
if (iterator.call(context, value, index, list)) { if (predicate.call(context, value, index, list)) {
result = value; result = value;
return true; return true;
} }
@ -165,36 +167,33 @@
// Return all the elements that pass a truth test. // Return all the elements that pass a truth test.
// Delegates to **ECMAScript 5**'s native `filter` if available. // Delegates to **ECMAScript 5**'s native `filter` if available.
// Aliased as `select`. // Aliased as `select`.
_.filter = _.select = function(obj, iterator, context) { _.filter = _.select = function(obj, predicate, context) {
var results = []; var results = [];
if (obj == null) return results; if (obj == null) return results;
if (nativeFilter && obj.filter === nativeFilter) return obj.filter(iterator, context); if (nativeFilter && obj.filter === nativeFilter) return obj.filter(predicate, context);
each(obj, function(value, index, list) { each(obj, function(value, index, list) {
if (iterator.call(context, value, index, list)) results[results.length] = value; if (predicate.call(context, value, index, list)) results.push(value);
}); });
return results; return results;
}; };
// Return all the elements for which a truth test fails. // Return all the elements for which a truth test fails.
_.reject = function(obj, iterator, context) { _.reject = function(obj, predicate, context) {
var results = []; return _.filter(obj, function(value, index, list) {
if (obj == null) return results; return !predicate.call(context, value, index, list);
each(obj, function(value, index, list) { }, context);
if (!iterator.call(context, value, index, list)) results[results.length] = value;
});
return results;
}; };
// Determine whether all of the elements match a truth test. // Determine whether all of the elements match a truth test.
// Delegates to **ECMAScript 5**'s native `every` if available. // Delegates to **ECMAScript 5**'s native `every` if available.
// Aliased as `all`. // Aliased as `all`.
_.every = _.all = function(obj, iterator, context) { _.every = _.all = function(obj, predicate, context) {
iterator || (iterator = _.identity); predicate || (predicate = _.identity);
var result = true; var result = true;
if (obj == null) return result; if (obj == null) return result;
if (nativeEvery && obj.every === nativeEvery) return obj.every(iterator, context); if (nativeEvery && obj.every === nativeEvery) return obj.every(predicate, context);
each(obj, function(value, index, list) { each(obj, function(value, index, list) {
if (!(result = result && iterator.call(context, value, index, list))) return breaker; if (!(result = result && predicate.call(context, value, index, list))) return breaker;
}); });
return !!result; return !!result;
}; };
@ -202,13 +201,13 @@
// Determine if at least one element in the object matches a truth test. // Determine if at least one element in the object matches a truth test.
// Delegates to **ECMAScript 5**'s native `some` if available. // Delegates to **ECMAScript 5**'s native `some` if available.
// Aliased as `any`. // Aliased as `any`.
var any = _.some = _.any = function(obj, iterator, context) { var any = _.some = _.any = function(obj, predicate, context) {
iterator || (iterator = _.identity); predicate || (predicate = _.identity);
var result = false; var result = false;
if (obj == null) return result; if (obj == null) return result;
if (nativeSome && obj.some === nativeSome) return obj.some(iterator, context); if (nativeSome && obj.some === nativeSome) return obj.some(predicate, context);
each(obj, function(value, index, list) { each(obj, function(value, index, list) {
if (result || (result = iterator.call(context, value, index, list))) return breaker; if (result || (result = predicate.call(context, value, index, list))) return breaker;
}); });
return !!result; return !!result;
}; };
@ -216,54 +215,55 @@
// Determine if the array or object contains a given value (using `===`). // Determine if the array or object contains a given value (using `===`).
// Aliased as `include`. // Aliased as `include`.
_.contains = _.include = function(obj, target) { _.contains = _.include = function(obj, target) {
var found = false; if (obj == null) return false;
if (obj == null) return found;
if (nativeIndexOf && obj.indexOf === nativeIndexOf) return obj.indexOf(target) != -1; if (nativeIndexOf && obj.indexOf === nativeIndexOf) return obj.indexOf(target) != -1;
found = any(obj, function(value) { return any(obj, function(value) {
return value === target; return value === target;
}); });
return found;
}; };
// Invoke a method (with arguments) on every item in a collection. // Invoke a method (with arguments) on every item in a collection.
_.invoke = function(obj, method) { _.invoke = function(obj, method) {
var args = slice.call(arguments, 2); var args = slice.call(arguments, 2);
var isFunc = _.isFunction(method);
return _.map(obj, function(value) { return _.map(obj, function(value) {
return (_.isFunction(method) ? method : value[method]).apply(value, args); return (isFunc ? method : value[method]).apply(value, args);
}); });
}; };
// Convenience version of a common use case of `map`: fetching a property. // Convenience version of a common use case of `map`: fetching a property.
_.pluck = function(obj, key) { _.pluck = function(obj, key) {
return _.map(obj, function(value){ return value[key]; }); return _.map(obj, _.property(key));
}; };
// Convenience version of a common use case of `filter`: selecting only objects // Convenience version of a common use case of `filter`: selecting only objects
// with specific `key:value` pairs. // containing specific `key:value` pairs.
_.where = function(obj, attrs) { _.where = function(obj, attrs) {
if (_.isEmpty(attrs)) return []; return _.filter(obj, _.matches(attrs));
return _.filter(obj, function(value) { };
for (var key in attrs) {
if (attrs[key] !== value[key]) return false; // Convenience version of a common use case of `find`: getting the first object
} // containing specific `key:value` pairs.
return true; _.findWhere = function(obj, attrs) {
}); return _.find(obj, _.matches(attrs));
}; };
// Return the maximum element or (element-based computation). // Return the maximum element or (element-based computation).
// Can't optimize arrays of integers longer than 65,535 elements. // Can't optimize arrays of integers longer than 65,535 elements.
// See: https://bugs.webkit.org/show_bug.cgi?id=80797 // See [WebKit Bug 80797](https://bugs.webkit.org/show_bug.cgi?id=80797)
_.max = function(obj, iterator, context) { _.max = function(obj, iterator, context) {
if (!iterator && _.isArray(obj) && obj[0] === +obj[0] && obj.length < 65535) { if (!iterator && _.isArray(obj) && obj[0] === +obj[0] && obj.length < 65535) {
return Math.max.apply(Math, obj); return Math.max.apply(Math, obj);
} }
if (!iterator && _.isEmpty(obj)) return -Infinity; var result = -Infinity, lastComputed = -Infinity;
var result = {computed : -Infinity};
each(obj, function(value, index, list) { each(obj, function(value, index, list) {
var computed = iterator ? iterator.call(context, value, index, list) : value; var computed = iterator ? iterator.call(context, value, index, list) : value;
computed >= result.computed && (result = {value : value, computed : computed}); if (computed > lastComputed) {
result = value;
lastComputed = computed;
}
}); });
return result.value; return result;
}; };
// Return the minimum element (or element-based computation). // Return the minimum element (or element-based computation).
@ -271,16 +271,19 @@
if (!iterator && _.isArray(obj) && obj[0] === +obj[0] && obj.length < 65535) { if (!iterator && _.isArray(obj) && obj[0] === +obj[0] && obj.length < 65535) {
return Math.min.apply(Math, obj); return Math.min.apply(Math, obj);
} }
if (!iterator && _.isEmpty(obj)) return Infinity; var result = Infinity, lastComputed = Infinity;
var result = {computed : Infinity};
each(obj, function(value, index, list) { each(obj, function(value, index, list) {
var computed = iterator ? iterator.call(context, value, index, list) : value; var computed = iterator ? iterator.call(context, value, index, list) : value;
computed < result.computed && (result = {value : value, computed : computed}); if (computed < lastComputed) {
result = value;
lastComputed = computed;
}
}); });
return result.value; return result;
}; };
// Shuffle an array. // Shuffle an array, using the modern version of the
// [Fisher-Yates shuffle](http://en.wikipedia.org/wiki/Fisher–Yates_shuffle).
_.shuffle = function(obj) { _.shuffle = function(obj) {
var rand; var rand;
var index = 0; var index = 0;
@ -293,19 +296,32 @@
return shuffled; return shuffled;
}; };
// Sample **n** random values from a collection.
// If **n** is not specified, returns a single random element.
// The internal `guard` argument allows it to work with `map`.
_.sample = function(obj, n, guard) {
if (n == null || guard) {
if (obj.length !== +obj.length) obj = _.values(obj);
return obj[_.random(obj.length - 1)];
}
return _.shuffle(obj).slice(0, Math.max(0, n));
};
// An internal function to generate lookup iterators. // An internal function to generate lookup iterators.
var lookupIterator = function(value) { var lookupIterator = function(value) {
return _.isFunction(value) ? value : function(obj){ return obj[value]; }; if (value == null) return _.identity;
if (_.isFunction(value)) return value;
return _.property(value);
}; };
// Sort the object's values by a criterion produced by an iterator. // Sort the object's values by a criterion produced by an iterator.
_.sortBy = function(obj, value, context) { _.sortBy = function(obj, iterator, context) {
var iterator = lookupIterator(value); iterator = lookupIterator(iterator);
return _.pluck(_.map(obj, function(value, index, list) { return _.pluck(_.map(obj, function(value, index, list) {
return { return {
value : value, value: value,
index : index, index: index,
criteria : iterator.call(context, value, index, list) criteria: iterator.call(context, value, index, list)
}; };
}).sort(function(left, right) { }).sort(function(left, right) {
var a = left.criteria; var a = left.criteria;
@ -314,43 +330,46 @@
if (a > b || a === void 0) return 1; if (a > b || a === void 0) return 1;
if (a < b || b === void 0) return -1; if (a < b || b === void 0) return -1;
} }
return left.index < right.index ? -1 : 1; return left.index - right.index;
}), 'value'); }), 'value');
}; };
// An internal function used for aggregate "group by" operations. // An internal function used for aggregate "group by" operations.
var group = function(obj, value, context, behavior) { var group = function(behavior) {
var result = {}; return function(obj, iterator, context) {
var iterator = lookupIterator(value); var result = {};
each(obj, function(value, index) { iterator = lookupIterator(iterator);
var key = iterator.call(context, value, index, obj); each(obj, function(value, index) {
behavior(result, key, value); var key = iterator.call(context, value, index, obj);
}); behavior(result, key, value);
return result; });
return result;
};
}; };
// Groups the object's values by a criterion. Pass either a string attribute // Groups the object's values by a criterion. Pass either a string attribute
// to group by, or a function that returns the criterion. // to group by, or a function that returns the criterion.
_.groupBy = function(obj, value, context) { _.groupBy = group(function(result, key, value) {
return group(obj, value, context, function(result, key, value) { _.has(result, key) ? result[key].push(value) : result[key] = [value];
(_.has(result, key) ? result[key] : (result[key] = [])).push(value); });
});
}; // Indexes the object's values by a criterion, similar to `groupBy`, but for
// when you know that your index values will be unique.
_.indexBy = group(function(result, key, value) {
result[key] = value;
});
// Counts instances of an object that group by a certain criterion. Pass // Counts instances of an object that group by a certain criterion. Pass
// either a string attribute to count by, or a function that returns the // either a string attribute to count by, or a function that returns the
// criterion. // criterion.
_.countBy = function(obj, value, context) { _.countBy = group(function(result, key) {
return group(obj, value, context, function(result, key, value) { _.has(result, key) ? result[key]++ : result[key] = 1;
if (!_.has(result, key)) result[key] = 0; });
result[key]++;
});
};
// Use a comparator function to figure out the smallest index at which // Use a comparator function to figure out the smallest index at which
// an object should be inserted so as to maintain order. Uses binary search. // an object should be inserted so as to maintain order. Uses binary search.
_.sortedIndex = function(array, obj, iterator, context) { _.sortedIndex = function(array, obj, iterator, context) {
iterator = iterator == null ? _.identity : lookupIterator(iterator); iterator = lookupIterator(iterator);
var value = iterator.call(context, obj); var value = iterator.call(context, obj);
var low = 0, high = array.length; var low = 0, high = array.length;
while (low < high) { while (low < high) {
@ -360,15 +379,17 @@
return low; return low;
}; };
// Safely convert anything iterable into a real, live array. // Safely create a real, live array from anything iterable.
_.toArray = function(obj) { _.toArray = function(obj) {
if (!obj) return []; if (!obj) return [];
if (obj.length === +obj.length) return slice.call(obj); if (_.isArray(obj)) return slice.call(obj);
if (obj.length === +obj.length) return _.map(obj, _.identity);
return _.values(obj); return _.values(obj);
}; };
// Return the number of elements in an object. // Return the number of elements in an object.
_.size = function(obj) { _.size = function(obj) {
if (obj == null) return 0;
return (obj.length === +obj.length) ? obj.length : _.keys(obj).length; return (obj.length === +obj.length) ? obj.length : _.keys(obj).length;
}; };
@ -379,7 +400,10 @@
// values in the array. Aliased as `head` and `take`. The **guard** check // values in the array. Aliased as `head` and `take`. The **guard** check
// allows it to work with `_.map`. // allows it to work with `_.map`.
_.first = _.head = _.take = function(array, n, guard) { _.first = _.head = _.take = function(array, n, guard) {
return (n != null) && !guard ? slice.call(array, 0, n) : array[0]; if (array == null) return void 0;
if ((n == null) || guard) return array[0];
if (n < 0) return [];
return slice.call(array, 0, n);
}; };
// Returns everything but the last entry of the array. Especially useful on // Returns everything but the last entry of the array. Especially useful on
@ -393,11 +417,9 @@
// Get the last element of an array. Passing **n** will return the last N // Get the last element of an array. Passing **n** will return the last N
// values in the array. The **guard** check allows it to work with `_.map`. // values in the array. The **guard** check allows it to work with `_.map`.
_.last = function(array, n, guard) { _.last = function(array, n, guard) {
if ((n != null) && !guard) { if (array == null) return void 0;
return slice.call(array, Math.max(array.length - n, 0)); if ((n == null) || guard) return array[array.length - 1];
} else { return slice.call(array, Math.max(array.length - n, 0));
return array[array.length - 1];
}
}; };
// Returns everything but the first entry of the array. Aliased as `tail` and `drop`. // Returns everything but the first entry of the array. Aliased as `tail` and `drop`.
@ -410,13 +432,16 @@
// Trim out all falsy values from an array. // Trim out all falsy values from an array.
_.compact = function(array) { _.compact = function(array) {
return _.filter(array, function(value){ return !!value; }); return _.filter(array, _.identity);
}; };
// Internal implementation of a recursive `flatten` function. // Internal implementation of a recursive `flatten` function.
var flatten = function(input, shallow, output) { var flatten = function(input, shallow, output) {
if (shallow && _.every(input, _.isArray)) {
return concat.apply(output, input);
}
each(input, function(value) { each(input, function(value) {
if (_.isArray(value)) { if (_.isArray(value) || _.isArguments(value)) {
shallow ? push.apply(output, value) : flatten(value, shallow, output); shallow ? push.apply(output, value) : flatten(value, shallow, output);
} else { } else {
output.push(value); output.push(value);
@ -425,7 +450,7 @@
return output; return output;
}; };
// Return a completely flattened version of an array. // Flatten out an array, either recursively (by default), or just one level.
_.flatten = function(array, shallow) { _.flatten = function(array, shallow) {
return flatten(array, shallow, []); return flatten(array, shallow, []);
}; };
@ -435,10 +460,25 @@
return _.difference(array, slice.call(arguments, 1)); return _.difference(array, slice.call(arguments, 1));
}; };
// Split an array into two arrays: one whose elements all satisfy the given
// predicate, and one whose elements all do not satisfy the predicate.
_.partition = function(array, predicate) {
var pass = [], fail = [];
each(array, function(elem) {
(predicate(elem) ? pass : fail).push(elem);
});
return [pass, fail];
};
// Produce a duplicate-free version of the array. If the array has already // Produce a duplicate-free version of the array. If the array has already
// been sorted, you have the option of using a faster algorithm. // been sorted, you have the option of using a faster algorithm.
// Aliased as `unique`. // Aliased as `unique`.
_.uniq = _.unique = function(array, isSorted, iterator, context) { _.uniq = _.unique = function(array, isSorted, iterator, context) {
if (_.isFunction(isSorted)) {
context = iterator;
iterator = isSorted;
isSorted = false;
}
var initial = iterator ? _.map(array, iterator, context) : array; var initial = iterator ? _.map(array, iterator, context) : array;
var results = []; var results = [];
var seen = []; var seen = [];
@ -454,7 +494,7 @@
// Produce an array that contains the union: each distinct element from all of // Produce an array that contains the union: each distinct element from all of
// the passed-in arrays. // the passed-in arrays.
_.union = function() { _.union = function() {
return _.uniq(concat.apply(ArrayProto, arguments)); return _.uniq(_.flatten(arguments, true));
}; };
// Produce an array that contains every item shared between all the // Produce an array that contains every item shared between all the
@ -463,7 +503,7 @@
var rest = slice.call(arguments, 1); var rest = slice.call(arguments, 1);
return _.filter(_.uniq(array), function(item) { return _.filter(_.uniq(array), function(item) {
return _.every(rest, function(other) { return _.every(rest, function(other) {
return _.indexOf(other, item) >= 0; return _.contains(other, item);
}); });
}); });
}; };
@ -478,11 +518,10 @@
// Zip together multiple lists into a single array -- elements that share // Zip together multiple lists into a single array -- elements that share
// an index go together. // an index go together.
_.zip = function() { _.zip = function() {
var args = slice.call(arguments); var length = _.max(_.pluck(arguments, 'length').concat(0));
var length = _.max(_.pluck(args, 'length'));
var results = new Array(length); var results = new Array(length);
for (var i = 0; i < length; i++) { for (var i = 0; i < length; i++) {
results[i] = _.pluck(args, "" + i); results[i] = _.pluck(arguments, '' + i);
} }
return results; return results;
}; };
@ -491,8 +530,9 @@
// pairs, or two parallel arrays of the same length -- one of keys, and one of // pairs, or two parallel arrays of the same length -- one of keys, and one of
// the corresponding values. // the corresponding values.
_.object = function(list, values) { _.object = function(list, values) {
if (list == null) return {};
var result = {}; var result = {};
for (var i = 0, l = list.length; i < l; i++) { for (var i = 0, length = list.length; i < length; i++) {
if (values) { if (values) {
result[list[i]] = values[i]; result[list[i]] = values[i];
} else { } else {
@ -510,17 +550,17 @@
// for **isSorted** to use binary search. // for **isSorted** to use binary search.
_.indexOf = function(array, item, isSorted) { _.indexOf = function(array, item, isSorted) {
if (array == null) return -1; if (array == null) return -1;
var i = 0, l = array.length; var i = 0, length = array.length;
if (isSorted) { if (isSorted) {
if (typeof isSorted == 'number') { if (typeof isSorted == 'number') {
i = (isSorted < 0 ? Math.max(0, l + isSorted) : isSorted); i = (isSorted < 0 ? Math.max(0, length + isSorted) : isSorted);
} else { } else {
i = _.sortedIndex(array, item); i = _.sortedIndex(array, item);
return array[i] === item ? i : -1; return array[i] === item ? i : -1;
} }
} }
if (nativeIndexOf && array.indexOf === nativeIndexOf) return array.indexOf(item, isSorted); if (nativeIndexOf && array.indexOf === nativeIndexOf) return array.indexOf(item, isSorted);
for (; i < l; i++) if (array[i] === item) return i; for (; i < length; i++) if (array[i] === item) return i;
return -1; return -1;
}; };
@ -546,11 +586,11 @@
} }
step = arguments[2] || 1; step = arguments[2] || 1;
var len = Math.max(Math.ceil((stop - start) / step), 0); var length = Math.max(Math.ceil((stop - start) / step), 0);
var idx = 0; var idx = 0;
var range = new Array(len); var range = new Array(length);
while(idx < len) { while(idx < length) {
range[idx++] = start; range[idx++] = start;
start += step; start += step;
} }
@ -565,29 +605,46 @@
var ctor = function(){}; var ctor = function(){};
// Create a function bound to a given object (assigning `this`, and arguments, // Create a function bound to a given object (assigning `this`, and arguments,
// optionally). Binding with arguments is also known as `curry`. // optionally). Delegates to **ECMAScript 5**'s native `Function.bind` if
// Delegates to **ECMAScript 5**'s native `Function.bind` if available. // available.
// We check for `func.bind` first, to fail fast when `func` is undefined. _.bind = function(func, context) {
_.bind = function bind(func, context) { var args, bound;
var bound, args; if (nativeBind && func.bind === nativeBind) return nativeBind.apply(func, slice.call(arguments, 1));
if (func.bind === nativeBind && nativeBind) return nativeBind.apply(func, slice.call(arguments, 1));
if (!_.isFunction(func)) throw new TypeError; if (!_.isFunction(func)) throw new TypeError;
args = slice.call(arguments, 2); args = slice.call(arguments, 2);
return bound = function() { return bound = function() {
if (!(this instanceof bound)) return func.apply(context, args.concat(slice.call(arguments))); if (!(this instanceof bound)) return func.apply(context, args.concat(slice.call(arguments)));
ctor.prototype = func.prototype; ctor.prototype = func.prototype;
var self = new ctor; var self = new ctor;
ctor.prototype = null;
var result = func.apply(self, args.concat(slice.call(arguments))); var result = func.apply(self, args.concat(slice.call(arguments)));
if (Object(result) === result) return result; if (Object(result) === result) return result;
return self; return self;
}; };
}; };
// Bind all of an object's methods to that object. Useful for ensuring that // Partially apply a function by creating a version that has had some of its
// all callbacks defined on an object belong to it. // arguments pre-filled, without changing its dynamic `this` context. _ acts
// as a placeholder, allowing any combination of arguments to be pre-filled.
_.partial = function(func) {
var boundArgs = slice.call(arguments, 1);
return function() {
var position = 0;
var args = boundArgs.slice();
for (var i = 0, length = args.length; i < length; i++) {
if (args[i] === _) args[i] = arguments[position++];
}
while (position < arguments.length) args.push(arguments[position++]);
return func.apply(this, args);
};
};
// Bind a number of an object's methods to that object. Remaining arguments
// are the method names to be bound. Useful for ensuring that all callbacks
// defined on an object belong to it.
_.bindAll = function(obj) { _.bindAll = function(obj) {
var funcs = slice.call(arguments, 1); var funcs = slice.call(arguments, 1);
if (funcs.length == 0) funcs = _.functions(obj); if (funcs.length === 0) throw new Error('bindAll must be passed function names');
each(funcs, function(f) { obj[f] = _.bind(obj[f], obj); }); each(funcs, function(f) { obj[f] = _.bind(obj[f], obj); });
return obj; return obj;
}; };
@ -616,27 +673,36 @@
}; };
// Returns a function, that, when invoked, will only be triggered at most once // Returns a function, that, when invoked, will only be triggered at most once
// during a given window of time. // during a given window of time. Normally, the throttled function will run
_.throttle = function(func, wait) { // as much as it can, without ever going more than once per `wait` duration;
var context, args, timeout, throttling, more, result; // but if you'd like to disable the execution on the leading edge, pass
var whenDone = _.debounce(function(){ more = throttling = false; }, wait); // `{leading: false}`. To disable execution on the trailing edge, ditto.
_.throttle = function(func, wait, options) {
var context, args, result;
var timeout = null;
var previous = 0;
options || (options = {});
var later = function() {
previous = options.leading === false ? 0 : _.now();
timeout = null;
result = func.apply(context, args);
context = args = null;
};
return function() { return function() {
context = this; args = arguments; var now = _.now();
var later = function() { if (!previous && options.leading === false) previous = now;
var remaining = wait - (now - previous);
context = this;
args = arguments;
if (remaining <= 0) {
clearTimeout(timeout);
timeout = null; timeout = null;
if (more) { previous = now;
result = func.apply(context, args);
}
whenDone();
};
if (!timeout) timeout = setTimeout(later, wait);
if (throttling) {
more = true;
} else {
throttling = true;
result = func.apply(context, args); result = func.apply(context, args);
context = args = null;
} else if (!timeout && options.trailing !== false) {
timeout = setTimeout(later, remaining);
} }
whenDone();
return result; return result;
}; };
}; };
@ -646,17 +712,34 @@
// N milliseconds. If `immediate` is passed, trigger the function on the // N milliseconds. If `immediate` is passed, trigger the function on the
// leading edge, instead of the trailing. // leading edge, instead of the trailing.
_.debounce = function(func, wait, immediate) { _.debounce = function(func, wait, immediate) {
var timeout, result; var timeout, args, context, timestamp, result;
return function() {
var context = this, args = arguments; var later = function() {
var later = function() { var last = _.now() - timestamp;
if (last < wait) {
timeout = setTimeout(later, wait - last);
} else {
timeout = null; timeout = null;
if (!immediate) result = func.apply(context, args); if (!immediate) {
}; result = func.apply(context, args);
context = args = null;
}
}
};
return function() {
context = this;
args = arguments;
timestamp = _.now();
var callNow = immediate && !timeout; var callNow = immediate && !timeout;
clearTimeout(timeout); if (!timeout) {
timeout = setTimeout(later, wait); timeout = setTimeout(later, wait);
if (callNow) result = func.apply(context, args); }
if (callNow) {
result = func.apply(context, args);
context = args = null;
}
return result; return result;
}; };
}; };
@ -678,11 +761,7 @@
// allowing you to adjust arguments, run code before and after, and // allowing you to adjust arguments, run code before and after, and
// conditionally execute the original function. // conditionally execute the original function.
_.wrap = function(func, wrapper) { _.wrap = function(func, wrapper) {
return function() { return _.partial(wrapper, func);
var args = [func];
push.apply(args, arguments);
return wrapper.apply(this, args);
};
}; };
// Returns a function that is the composition of a list of functions, each // Returns a function that is the composition of a list of functions, each
@ -700,7 +779,6 @@
// Returns a function that will only be executed after being called N times. // Returns a function that will only be executed after being called N times.
_.after = function(times, func) { _.after = function(times, func) {
if (times <= 0) return func();
return function() { return function() {
if (--times < 1) { if (--times < 1) {
return func.apply(this, arguments); return func.apply(this, arguments);
@ -713,31 +791,43 @@
// Retrieve the names of an object's properties. // Retrieve the names of an object's properties.
// Delegates to **ECMAScript 5**'s native `Object.keys` // Delegates to **ECMAScript 5**'s native `Object.keys`
_.keys = nativeKeys || function(obj) { _.keys = function(obj) {
if (obj !== Object(obj)) throw new TypeError('Invalid object'); if (!_.isObject(obj)) return [];
if (nativeKeys) return nativeKeys(obj);
var keys = []; var keys = [];
for (var key in obj) if (_.has(obj, key)) keys[keys.length] = key; for (var key in obj) if (_.has(obj, key)) keys.push(key);
return keys; return keys;
}; };
// Retrieve the values of an object's properties. // Retrieve the values of an object's properties.
_.values = function(obj) { _.values = function(obj) {
var values = []; var keys = _.keys(obj);
for (var key in obj) if (_.has(obj, key)) values.push(obj[key]); var length = keys.length;
var values = new Array(length);
for (var i = 0; i < length; i++) {
values[i] = obj[keys[i]];
}
return values; return values;
}; };
// Convert an object into a list of `[key, value]` pairs. // Convert an object into a list of `[key, value]` pairs.
_.pairs = function(obj) { _.pairs = function(obj) {
var pairs = []; var keys = _.keys(obj);
for (var key in obj) if (_.has(obj, key)) pairs.push([key, obj[key]]); var length = keys.length;
var pairs = new Array(length);
for (var i = 0; i < length; i++) {
pairs[i] = [keys[i], obj[keys[i]]];
}
return pairs; return pairs;
}; };
// Invert the keys and values of an object. The values must be serializable. // Invert the keys and values of an object. The values must be serializable.
_.invert = function(obj) { _.invert = function(obj) {
var result = {}; var result = {};
for (var key in obj) if (_.has(obj, key)) result[obj[key]] = key; var keys = _.keys(obj);
for (var i = 0, length = keys.length; i < length; i++) {
result[obj[keys[i]]] = keys[i];
}
return result; return result;
}; };
@ -754,8 +844,10 @@
// Extend a given object with all the properties in passed-in object(s). // Extend a given object with all the properties in passed-in object(s).
_.extend = function(obj) { _.extend = function(obj) {
each(slice.call(arguments, 1), function(source) { each(slice.call(arguments, 1), function(source) {
for (var prop in source) { if (source) {
obj[prop] = source[prop]; for (var prop in source) {
obj[prop] = source[prop];
}
} }
}); });
return obj; return obj;
@ -784,8 +876,10 @@
// Fill in a given object with default properties. // Fill in a given object with default properties.
_.defaults = function(obj) { _.defaults = function(obj) {
each(slice.call(arguments, 1), function(source) { each(slice.call(arguments, 1), function(source) {
for (var prop in source) { if (source) {
if (obj[prop] == null) obj[prop] = source[prop]; for (var prop in source) {
if (obj[prop] === void 0) obj[prop] = source[prop];
}
} }
}); });
return obj; return obj;
@ -808,7 +902,7 @@
// Internal recursive comparison function for `isEqual`. // Internal recursive comparison function for `isEqual`.
var eq = function(a, b, aStack, bStack) { var eq = function(a, b, aStack, bStack) {
// Identical objects are equal. `0 === -0`, but they aren't identical. // Identical objects are equal. `0 === -0`, but they aren't identical.
// See the Harmony `egal` proposal: http://wiki.ecmascript.org/doku.php?id=harmony:egal. // See the [Harmony `egal` proposal](http://wiki.ecmascript.org/doku.php?id=harmony:egal).
if (a === b) return a !== 0 || 1 / a == 1 / b; if (a === b) return a !== 0 || 1 / a == 1 / b;
// A strict comparison is necessary because `null == undefined`. // A strict comparison is necessary because `null == undefined`.
if (a == null || b == null) return a === b; if (a == null || b == null) return a === b;
@ -850,6 +944,14 @@
// unique nested structures. // unique nested structures.
if (aStack[length] == a) return bStack[length] == b; if (aStack[length] == a) return bStack[length] == b;
} }
// Objects with different constructors are not equivalent, but `Object`s
// from different frames are.
var aCtor = a.constructor, bCtor = b.constructor;
if (aCtor !== bCtor && !(_.isFunction(aCtor) && (aCtor instanceof aCtor) &&
_.isFunction(bCtor) && (bCtor instanceof bCtor))
&& ('constructor' in a && 'constructor' in b)) {
return false;
}
// Add the first object to the stack of traversed objects. // Add the first object to the stack of traversed objects.
aStack.push(a); aStack.push(a);
bStack.push(b); bStack.push(b);
@ -866,13 +968,6 @@
} }
} }
} else { } else {
// Objects with different constructors are not equivalent, but `Object`s
// from different frames are.
var aCtor = a.constructor, bCtor = b.constructor;
if (aCtor !== bCtor && !(_.isFunction(aCtor) && (aCtor instanceof aCtor) &&
_.isFunction(bCtor) && (bCtor instanceof bCtor))) {
return false;
}
// Deep compare objects. // Deep compare objects.
for (var key in a) { for (var key in a) {
if (_.has(a, key)) { if (_.has(a, key)) {
@ -950,7 +1045,7 @@
// Is a given object a finite number? // Is a given object a finite number?
_.isFinite = function(obj) { _.isFinite = function(obj) {
return _.isNumber(obj) && isFinite(obj); return isFinite(obj) && !isNaN(parseFloat(obj));
}; };
// Is the given value `NaN`? (NaN is the only number which does not equal itself). // Is the given value `NaN`? (NaN is the only number which does not equal itself).
@ -994,9 +1089,35 @@
return value; return value;
}; };
_.constant = function(value) {
return function () {
return value;
};
};
_.property = function(key) {
return function(obj) {
return obj[key];
};
};
// Returns a predicate for checking whether an object has a given set of `key:value` pairs.
_.matches = function(attrs) {
return function(obj) {
if (obj === attrs) return true; //avoid comparing an object to itself.
for (var key in attrs) {
if (attrs[key] !== obj[key])
return false;
}
return true;
}
};
// Run a function **n** times. // Run a function **n** times.
_.times = function(n, iterator, context) { _.times = function(n, iterator, context) {
for (var i = 0; i < n; i++) iterator.call(context, i); var accum = Array(Math.max(0, n));
for (var i = 0; i < n; i++) accum[i] = iterator.call(context, i);
return accum;
}; };
// Return a random integer between min and max (inclusive). // Return a random integer between min and max (inclusive).
@ -1005,9 +1126,12 @@
max = min; max = min;
min = 0; min = 0;
} }
return min + (0 | Math.random() * (max - min + 1)); return min + Math.floor(Math.random() * (max - min + 1));
}; };
// A (possibly faster) way to get the current timestamp as an integer.
_.now = Date.now || function() { return new Date().getTime(); };
// List of HTML entities for escaping. // List of HTML entities for escaping.
var entityMap = { var entityMap = {
escape: { escape: {
@ -1015,8 +1139,7 @@
'<': '&lt;', '<': '&lt;',
'>': '&gt;', '>': '&gt;',
'"': '&quot;', '"': '&quot;',
"'": '&#x27;', "'": '&#x27;'
'/': '&#x2F;'
} }
}; };
entityMap.unescape = _.invert(entityMap.escape); entityMap.unescape = _.invert(entityMap.escape);
@ -1037,17 +1160,17 @@
}; };
}); });
// If the value of the named property is a function then invoke it; // If the value of the named `property` is a function then invoke it with the
// otherwise, return it. // `object` as context; otherwise, return it.
_.result = function(object, property) { _.result = function(object, property) {
if (object == null) return null; if (object == null) return void 0;
var value = object[property]; var value = object[property];
return _.isFunction(value) ? value.call(object) : value; return _.isFunction(value) ? value.call(object) : value;
}; };
// Add your own custom functions to the Underscore object. // Add your own custom functions to the Underscore object.
_.mixin = function(obj) { _.mixin = function(obj) {
each(_.functions(obj), function(name){ each(_.functions(obj), function(name) {
var func = _[name] = obj[name]; var func = _[name] = obj[name];
_.prototype[name] = function() { _.prototype[name] = function() {
var args = [this._wrapped]; var args = [this._wrapped];
@ -1061,7 +1184,7 @@
// Useful for temporary DOM ids. // Useful for temporary DOM ids.
var idCounter = 0; var idCounter = 0;
_.uniqueId = function(prefix) { _.uniqueId = function(prefix) {
var id = idCounter++; var id = ++idCounter + '';
return prefix ? prefix + id : id; return prefix ? prefix + id : id;
}; };
@ -1096,6 +1219,7 @@
// Underscore templating handles arbitrary delimiters, preserves whitespace, // Underscore templating handles arbitrary delimiters, preserves whitespace,
// and correctly escapes quotes within interpolated code. // and correctly escapes quotes within interpolated code.
_.template = function(text, data, settings) { _.template = function(text, data, settings) {
var render;
settings = _.defaults({}, settings, _.templateSettings); settings = _.defaults({}, settings, _.templateSettings);
// Combine delimiters into one regular expression via alternation. // Combine delimiters into one regular expression via alternation.
@ -1111,11 +1235,18 @@
text.replace(matcher, function(match, escape, interpolate, evaluate, offset) { text.replace(matcher, function(match, escape, interpolate, evaluate, offset) {
source += text.slice(index, offset) source += text.slice(index, offset)
.replace(escaper, function(match) { return '\\' + escapes[match]; }); .replace(escaper, function(match) { return '\\' + escapes[match]; });
source +=
escape ? "'+\n((__t=(" + escape + "))==null?'':_.escape(__t))+\n'" : if (escape) {
interpolate ? "'+\n((__t=(" + interpolate + "))==null?'':__t)+\n'" : source += "'+\n((__t=(" + escape + "))==null?'':_.escape(__t))+\n'";
evaluate ? "';\n" + evaluate + "\n__p+='" : ''; }
if (interpolate) {
source += "'+\n((__t=(" + interpolate + "))==null?'':__t)+\n'";
}
if (evaluate) {
source += "';\n" + evaluate + "\n__p+='";
}
index = offset + match.length; index = offset + match.length;
return match;
}); });
source += "';\n"; source += "';\n";
@ -1127,7 +1258,7 @@
source + "return __p;\n"; source + "return __p;\n";
try { try {
var render = new Function(settings.variable || 'obj', '_', source); render = new Function(settings.variable || 'obj', '_', source);
} catch (e) { } catch (e) {
e.source = source; e.source = source;
throw e; throw e;
@ -1197,4 +1328,16 @@
}); });
// AMD registration happens at the end for compatibility with AMD loaders
// that may not enforce next-turn semantics on modules. Even though general
// practice for AMD registration is to be anonymous, underscore registers
// as a named module because, like jQuery, it is a base library that is
// popular enough to be bundled in a third party lib, but not be part of
// an AMD load request. Those cases could generate an error when an
// anonymous define() is called outside of a loader request.
if (typeof define === 'function' && define.amd) {
define('underscore', [], function() {
return _;
});
}
}).call(this); }).call(this);

2
package.json
View File

@ -24,7 +24,7 @@
"js2xmlparser": "~0.1.0", "js2xmlparser": "~0.1.0",
"marked": "~0.3.1", "marked": "~0.3.1",
"taffydb": "https://github.com/hegemonic/taffydb/tarball/master", "taffydb": "https://github.com/hegemonic/taffydb/tarball/master",
"underscore": "~1.4.2", "underscore": "~1.6.0",
"wrench": "~1.3.9" "wrench": "~1.3.9"
}, },
"devDependencies": { "devDependencies": {