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18 lines
309 B
Markdown
18 lines
309 B
Markdown
常见错误
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===
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# 判断一个对象是否是数组
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下面是宁朗写的：
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```
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if (color.constructor !== Array) {
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throw new Error("The color should be Array");
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}
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```
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下面是Underscore的方法：
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```
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_.isArray = nativeIsArray || function(obj) {
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return toString.call(obj) == '[object Array]';
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};
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```
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