fix typo

.gitignore

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+node_modules/
+coverage/
+dist/
+Thumbs.db
+ehthumbs.db
+Desktop.ini
+$RECYCLE.BIN/
+.DS_Store
+.vscode
+.docz/
+package-lock.json
+coverage/
+.idea

.npmignore

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+examples/

.size-snapshot.json

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+{
+  "dist/index.js": {
+    "bundled": 1518,
+    "minified": 567,
+    "gzipped": 351,
+    "treeshaked": {
+      "rollup": {
+        "code": 57,
+        "import_statements": 57
+      },
+      "webpack": {
+        "code": 1074
+      }
+    }
+  },
+  "dist/index.cjs.js": {
+    "bundled": 1949,
+    "minified": 816,
+    "gzipped": 406
+  }
+}

LICENSE

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+MIT License
+
+Copyright (c) 2019 Paul Henschel
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

index.js

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+import { useState, useEffect } from 'react'
+
+export default function create(fn) {
+  let listeners = []
+  let state = {
+    current: fn(
+      merge => {
+        if (typeof merge === 'function') {
+          merge = merge(state.current)
+        }
+        state.current = { ...state.current, ...merge }
+        listeners.forEach(listener => listener())
+      },
+      () => state.current
+    ),
+  }
+  return (selector, dependencies) => {
+    const selected = selector(state.current)
+    // Using functional initial b/c selected itself could be a function
+    const [slice, set] = useState(() => selected)
+    useEffect(() => {
+      const ping = () => {
+        // Get fresh selected state
+        let selected = selector(state.current)
+        // If state is not a atomic shallow equal it
+        if (typeof selected === 'object' && !Array.isArray(selected)) {
+          selected = Object.entries(selected).reduce(
+            (acc, [key, value]) => (slice[key] !== value ? { ...acc, [key]: value } : acc),
+            slice
+          )
+        }
+        // Using functional initial b/c selected itself could be a function
+        if (slice !== selected) {
+          // Refresh local slice
+          set(() => selected)
+        }
+      }
+      listeners.push(ping)
+      return () => (listeners = listeners.filter(i => i !== ping))
+    }, dependencies || [selector])
+    // Returning the selected state slice
+    return selected
+  }
+}

package.json

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+{
+  "name": "msga",
+  "version": "0.0.0",
+  "description": "👍 Making React-state great again",
+  "main": "dist/index.cjs.js",
+  "module": "dist/index.js",
+  "sideEffects": false,
+  "scripts": {
+    "prebuild": "rimraf dist",
+    "build": "rollup -c",
+    "prepare": "npm run build",
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "husky": {
+    "hooks": {
+      "pre-commit": "lint-staged"
+    }
+  },
+  "prettier": {
+    "semi": false,
+    "trailingComma": "es5",
+    "singleQuote": true,
+    "jsxBracketSameLine": true,
+    "tabWidth": 2,
+    "printWidth": 120
+  },
+  "lint-staged": {
+    "*.{js,}": [
+      "prettier --write",
+      "git add"
+    ]
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/drcmda/msga.git"
+  },
+  "keywords": [
+    "react",
+    "state",
+    "manager",
+    "management",
+    "redux",
+    "store"
+  ],
+  "author": "Paul Henschel",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/drcmda/msga/issues"
+  },
+  "homepage": "https://github.com/drcmda/msga#readme",
+  "dependencies": {
+    "@babel/runtime": "^7.4.3"
+  },
+  "devDependencies": {
+    "@babel/core": "7.3.4",
+    "@babel/plugin-transform-modules-commonjs": "7.2.0",
+    "@babel/plugin-transform-parameters": "7.3.3",
+    "@babel/plugin-transform-runtime": "7.3.4",
+    "@babel/plugin-transform-template-literals": "7.2.0",
+    "@babel/preset-env": "7.3.4",
+    "@babel/preset-react": "7.0.0",
+    "@babel/preset-typescript": "^7.3.3",
+    "husky": "^1.3.1",
+    "lint-staged": "^8.1.5",
+    "prettier": "^1.16.4",
+    "rimraf": "^2.6.3",
+    "rollup": "^1.9.0",
+    "rollup-plugin-babel": "^4.3.2",
+    "rollup-plugin-node-resolve": "^4.2.1",
+    "rollup-plugin-size-snapshot": "^0.8.0",
+    "typescript": "^3.4.2"
+  }
+}

readme.md

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+    npm install msga
+
+React state is in a bit of a mess. Hundreds of solutions out there, the established options don't exactly go along well with hooks. There are dozens of solutions that claim you can replace, say, Redux with hooks and context, but most of them can't select state, so everything renders on every change, which IMO doesn't qualify as a state-manager.
+
+#### Create a store (or multiple, up to you...)
+
+```jsx
+// Name your store anything you like, but remember, it's a hook!
+const useStore = create(set => ({
+  // Everything in here is your state
+  count: 1,
+  // You don't have to nest your actions, but makes it easier to fetch them later on
+  actions: {
+    inc: () => set(state => ({ count: state.count + 1 })), // same semantics as setState
+    dec: () => set(state => ({ count: state.count - 1 })),
+  },
+}))
+```
+
+#### Bind components
+
+```jsx
+function Counter() {
+  // Will only re-render the component when "count" changes
+  const count = useState(state => state.count)
+  return <h1>{count}</h1>
+}
+
+function Controlls() {
+  const { inc, dec } = useState(state => state.actions)
+  return (
+    <>
+      <button onClick={inc}>up</button>
+      <button onClick={down}>down</button>
+    </>
+  )
+}
+```
+
+# Receipes
+
+## Fetching everything
+
+You can, but remember that it will cause the component to update on every state change!
+
+```jsx
+const data = useStore()
+```
+
+## Selecting multiple state slices
+
+It's just like mapStateToProps in Redux. msga will run a small shallow euqal test over the object you return.
+
+```jsx
+const { name, age } = useStore(state => ({ name: state.name, age: state.age }))
+```
+
+## Fetching from multiple stores
+
+You can create as many stores as you like, but you can also use data from one call in another.
+
+```jsx
+const currentUser = useCredentialsStore(state => state.currentUser)
+const person = usePersonStore(state => state.persons[currentUser])
+```
+
+## Memoizing selectors (this is completely optional)
+
+You can change the selector always. But additionally you can memoize it with an optional second argument that's similar to Reacts useMemo. You could do it without, but it will subscribe and unsubscribe to the store on every render pass. Not that big of a deal, unless you're dealing with thousands of connected components.
+
+```jsx
+const book = useBookStore(state => state.books[title], [title])
+```
+
+## Async actions
+
+Just call `set` when you're ready, it doesn't care if your actions are async or not.
+
+```jsx
+const useStore = create(set => ({
+  result: '',
+  fetch: async url => {
+    const response = await fetch(url)
+    const json = await response.json()
+    set({ result: json })
+  },
+}))
+```
+
+## Read from state in actions
+
+The `set` function already allows functional update `set(state => result)` but should there be cases where you need to access outside of it you have an optional `get`, too.
+
+```jsx
+const useStore = create((set, get) => ({
+  text: "hello",
+  action: () => {
+    const text = get().text
+    ///...
+  }
+})
+```
+
+## Sick of reducers and changing nested state? Use Immer!
+
+```jsx
+import produce from "immer"
+
+const useStore = create((set, get) => ({
+  nested: {
+    structure: {
+      constains: {
+        a: "value"
+      }
+    }
+  },
+  action: () => set(produce(draft => {
+    draft.nested.structure.contains.a.value = undefined // not anymore ...
+  }))
+})
+```

rollup.config.js

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+import path from 'path'
+import babel from 'rollup-plugin-babel'
+import resolve from 'rollup-plugin-node-resolve'
+import { sizeSnapshot } from 'rollup-plugin-size-snapshot'
+
+const root = process.platform === 'win32' ? path.resolve('/') : '/'
+const external = id => !id.startsWith('.') && !id.startsWith(root)
+const extensions = ['.js', '.jsx', '.ts', '.tsx']
+const getBabelOptions = ({ useESModules }, targets) => ({
+  babelrc: false,
+  extensions,
+  exclude: '**/node_modules/**',
+  runtimeHelpers: true,
+  presets: [
+    ['@babel/preset-env', { loose: true, modules: false, targets }],
+    '@babel/preset-react',
+    '@babel/preset-typescript',
+  ],
+  plugins: [['@babel/transform-runtime', { regenerator: false, useESModules }]],
+})
+
+function createConfig(entry, out) {
+  return [
+    {
+      input: entry,
+      output: { file: `dist/${out}.js`, format: 'esm' },
+      external,
+      plugins: [
+        babel(getBabelOptions({ useESModules: true }, '>1%, not dead, not ie 11, not op_mini all')),
+        sizeSnapshot(),
+        resolve({ extensions }),
+      ],
+    },
+    {
+      input: entry,
+      output: { file: `dist/${out}.cjs.js`, format: 'cjs' },
+      external,
+      plugins: [babel(getBabelOptions({ useESModules: false })), sizeSnapshot(), resolve({ extensions })],
+    },
+  ]
+}
+
+export default [...createConfig('index', 'index')]