Created
May 22, 2017 02:57
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JS Bin // source https://jsbin.com/xasezimaro
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<!DOCTYPE html> | |
<html> | |
<head> | |
<meta charset="utf-8"> | |
<meta name="viewport" content="width=device-width"> | |
<title>JS Bin</title> | |
<script src="https://fb.me/react-with-addons-15.1.0.js"></script> | |
<script src="https://fb.me/react-dom-15.1.0.js"></script> | |
<script src="https://cdnjs.cloudflare.com/ajax/libs/redux/3.0.4/redux.js"></script> | |
<script src="https://cdnjs.cloudflare.com/ajax/libs/expect/1.20.2/expect.js"></script> | |
</head> | |
<body> | |
<script id="jsbin-javascript"> | |
'use strict'; | |
var counter = function counter(state, action) { | |
if (state === undefined) state = 0; | |
if (typeof state === 'undefined') return 0; | |
if (action.type === 'INCREMENT') { | |
return state + 1; | |
} else if (action.type === 'DECREMENT') { | |
return state - 1; | |
} else return state; | |
}; | |
expect(counter(0, { type: 'INCREMENT' })).toEqual(1); | |
expect(counter(1, { type: 'INCREMENT' })).toEqual(2); | |
expect(counter(2, { type: 'DECREMENT' })).toEqual(1); | |
expect(counter(1, { type: 'DECREMENT' })).toEqual(0); | |
expect(counter(1, { type: 'SOMETHING_ELSE' })).toEqual(1); | |
console.log("Test Passed!"); | |
var render = function render() { | |
document.body.innerText = store.getState(); | |
}; | |
var _Redux = Redux; | |
var createStore = _Redux.createStore; | |
var store = createStore(counter); | |
store.subscribe(render); | |
render(); | |
document.addEventListener('click', function () { | |
store.dispatch({ type: 'INCREMENT' }); | |
}); | |
</script> | |
<script id="jsbin-source-javascript" type="text/javascript">const counter = (state = 0, action) => { | |
if (typeof state === 'undefined') | |
return 0; | |
if (action.type === 'INCREMENT') { | |
return state + 1; | |
} else if (action.type === 'DECREMENT') { | |
return state - 1; | |
} else | |
return state; | |
} | |
expect ( | |
counter(0, {type:'INCREMENT'}) | |
).toEqual(1); | |
expect ( | |
counter(1, {type:'INCREMENT'}) | |
).toEqual(2); | |
expect ( | |
counter(2, {type:'DECREMENT'}) | |
).toEqual(1); | |
expect ( | |
counter(1, {type:'DECREMENT'}) | |
).toEqual(0); | |
expect ( | |
counter(1, {type:'SOMETHING_ELSE'}) | |
).toEqual(1) | |
console.log("Test Passed!") | |
const render = () => { | |
document.body.innerText = store.getState(); | |
} | |
const { createStore } = Redux; | |
const store = createStore(counter); | |
store.subscribe(render); | |
render(); | |
document.addEventListener('click', () => { | |
store.dispatch({type:'INCREMENT'}); | |
});</script></body> | |
</html> |
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Learn more about bidirectional Unicode characters
'use strict'; | |
var counter = function counter(state, action) { | |
if (state === undefined) state = 0; | |
if (typeof state === 'undefined') return 0; | |
if (action.type === 'INCREMENT') { | |
return state + 1; | |
} else if (action.type === 'DECREMENT') { | |
return state - 1; | |
} else return state; | |
}; | |
expect(counter(0, { type: 'INCREMENT' })).toEqual(1); | |
expect(counter(1, { type: 'INCREMENT' })).toEqual(2); | |
expect(counter(2, { type: 'DECREMENT' })).toEqual(1); | |
expect(counter(1, { type: 'DECREMENT' })).toEqual(0); | |
expect(counter(1, { type: 'SOMETHING_ELSE' })).toEqual(1); | |
console.log("Test Passed!"); | |
var render = function render() { | |
document.body.innerText = store.getState(); | |
}; | |
var _Redux = Redux; | |
var createStore = _Redux.createStore; | |
var store = createStore(counter); | |
store.subscribe(render); | |
render(); | |
document.addEventListener('click', function () { | |
store.dispatch({ type: 'INCREMENT' }); | |
}); |
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