<!DOCTYPE html>
<html lang="en">
<head>
<title>Redux basic example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
<style>
button {
min-width: 70px;
height: auto;
font-size: 30px;
}
</style>
<div>
<p>
Clicked: <span id="value">0</span> times
<button id="increment">+</button>
<button id="decrement">-</button>
<button id="incrementIfOdd">Increment if odd</button>
<button id="incrementAsync">Increment async</button>
</p>
</div>
<script type="module">
import * as Redux from 'https://unpkg.com/redux@latest/dist/redux.browser.mjs'
function counter(state, action) {
if (typeof state === 'undefined') {
return 0
}
switch (action.type) {
case 'INCREMENT':
return state + 1
case 'DECREMENT':
return state - 1
default:
return state
}
}
var store = Redux.createStore(counter)
var valueEl = document.getElementById('value')
function render() {
valueEl.innerHTML = store.getState().toString()
}
render()
store.subscribe(render)
document.getElementById('increment')
.addEventListener('click', function () {
store.dispatch({ type: 'INCREMENT' })
})
document.getElementById('decrement')
.addEventListener('click', function () {
store.dispatch({ type: 'DECREMENT' })
})
document.getElementById('incrementIfOdd')
.addEventListener('click', function () {
if (store.getState() % 2 !== 0) {
store.dispatch({ type: 'INCREMENT' })
}
})
document.getElementById('incrementAsync')
.addEventListener('click', function () {
setTimeout(function () {
store.dispatch({ type: 'INCREMENT' })
}, 1000)
})
</script>
<hr> <a
href="https://github.com/reduxjs/redux/tree/master/examples/counter-vanilla">https://github.com/reduxjs/redux/tree/master/examples/counter-vanilla</a>
<pre contenteditable id=code></pre>
<script>fetch("").then(res => res.text()).then(res => code.textContent = res)</script>
</body>
</html>