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https://github.com/adrianmcli/omg-counters
😍 Increment decrement counters using various frontend frameworks.
https://github.com/adrianmcli/omg-counters
counter examples frameworks frontend hello-world javascript reference
Last synced: about 2 months ago
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😍 Increment decrement counters using various frontend frameworks.
- Host: GitHub
- URL: https://github.com/adrianmcli/omg-counters
- Owner: adrianmcli
- Created: 2017-02-16T20:30:21.000Z (over 7 years ago)
- Default Branch: master
- Last Pushed: 2017-03-28T22:39:23.000Z (over 7 years ago)
- Last Synced: 2024-05-14T15:36:30.258Z (4 months ago)
- Topics: counter, examples, frameworks, frontend, hello-world, javascript, reference
- Homepage:
- Size: 272 KB
- Stars: 48
- Watchers: 4
- Forks: 10
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- Contributing: CONTRIBUTING.md
Awesome Lists containing this project
README
↕️️ Increment/decrement counters using various frontend frameworks.
---
### _When a hello world is too simple, but a todo app is too complex._
_No counters were harmed in the making of these examples._
### Attribution
* AngularJS ([@housseindjirdeh](https://github.com/housseindjirdeh))
* Angular 2+ ([@ashwin-sureshkumar](https://github.com/ashwin-sureshkumar))
* MobX ([@teesloane](https://github.com/teesloane))
* Choo ([@jelanithompson](https://github.com/JelaniThompson))
* Marko ([@patrick-steele-idem](https://github.com/patrick-steele-idem))
### Table of Contents
- [Vanilla JS](#vanilla-js)
- [jQuery](#jquery)
- [RxJS](#rxjs)
- [React](#react)
- [React + Redux](#react--redux)
- [AngularJS](#angularjs)
- [Angular 2+](#angular-2)
- [Hyperapp](#hyperapp)
- [Vue.js](#vuejs)
- [Elm](#elm)
- [Cycle.js](#cyclejs)
- [Jumpsuit](#jumpsuit)
- [Mobx](#mobx)
- [Choo](#choo)
- [Marko](#marko)
_Don't see your favorite framework? Make a PR! (see [contributing guidelines](CONTRIBUTING.md))_
# Vanilla JS
```html
Increment
Decrement
```
```js
// javascript
let count = 0
const $count = document.getElementsByClassName('count')[0]
$count.textContent = count
function increment() { $count.textContent = ++count }
function decrement() { $count.textContent = --count }
```
[Live Example on WebpackBin](http://www.webpackbin.com/NyXDu7ytz)
# jQuery
```html
Increment
Decrement
```
```js
// javascript
let count = 0
$('.count').text(count)
$('.increment').on('click', () => $('.count').text(++count))
$('.decrement').on('click', () => $('.count').text(--count))
```
[Live Example on WebpackBin](http://www.webpackbin.com/VyZb9Z1KG)
# RxJS
```html
//
// Increment
// Decrement
```
```js
// javascript
const $factory = id => Rx.Observable.fromEvent(document.getElementById(id), 'click')
const setCount = count => document.getElementById('count').textContent = count
const inc$ = $factory('increment').mapTo(1)
const dec$ = $factory('decrement').mapTo(-1)
Rx.Observable.merge(inc$, dec$)
.startWith(0)
.scan((a, b) => a + b)
.subscribe(setCount)
```
[Live Example on WebpackBin](http://www.webpackbin.com/NkLKZwkFM)
# React
```jsx
class Counter extends React.Component {
state = {count: 0}
increment = e =>
this.setState({ count: this.state.count + 1 })
decrement = e =>
this.setState({ count: this.state.count - 1 })
render = () =>
{this.state.count}
Increment
Decrement
}
```
[Live Example on WebpackBin](http://www.webpackbin.com/4kvMWMkKG)
# React + Redux
```jsx
import { createStore } from 'redux'
const reducer = (state = 0, action) => {
switch (action.type) {
case 'INCREMENT': return state + 1
case 'DECREMENT': return state - 1
default: return state
}
}
const store = createStore(reducer)
var Counter = ({ count, onIncrement, onDecrement }) => (
{count}
Increment
Decrement
)
const render = () => {
ReactDOM.render(
store.dispatch({type: 'INCREMENT'})}
onDecrement={()=> store.dispatch({type: 'DECREMENT'})}
/>,
document.querySelector('body')
)
}
store.subscribe(render)
render()
```
[Live Example on WebpackBin](http://www.webpackbin.com/N175AO1tz)
# AngularJS
```js
const CounterComponent = {
template: `
{{ $ctrl.counter }}
Increment
Decrement
`,
controller: class CounterController {
constructor() {
this.counter = 0
}
increaseCounter() {
this.counter++
}
decreaseCounter() {
this.counter--
}
}
}
export default CounterComponent
```
[Live Example on WebpackBin](http://www.webpackbin.com/4JwFUVetz)
# Angular 2+
```js
import { Component } from '@angular/core'
@Component({
selector: 'counter',
template : `
{{counter}}
Increment
Decrement
`
})
export class CounterComponent {
counter: number = 0
onIncrement() {
this.counter++
}
onDecrement() {
this.counter--
}
}
```
[Live Example on WebpackBin](http://www.webpackbin.com/4kFun-lFM)
# Hyperapp
```jsx
app({
model: 0,
update: {
add: model => model + 1,
sub: model => model - 1
},
view: (model, actions) =>
{model}
Increment
Decrement
})
```
[Live Example on WebpackBin](http://www.webpackbin.com/VJ-dzMJYz)
# Vue.js
```html
{{ count }}
Increment
Decrement
```
```js
// javascript
new Vue({
el: '#app',
data: { count: 0 },
methods: {
increment: function() { this.count++ },
decrement: function() { this.count-- }
}
})
```
[Live Example on WebpackBin](http://www.webpackbin.com/VyxxXfJYM)
# Elm
```elm
import Html exposing (beginnerProgram, div, h1, button, text)
import Html.Events exposing (onClick)
main =
beginnerProgram { model = 0, view = view, update = update }
view model =
div []
[ h1 [] [ text (toString model) ]
, button [ onClick Increment ] [ text "increment" ]
, button [ onClick Decrement ] [ text "decrement" ]
]
type Msg = Increment | Decrement
update msg model =
case msg of
Increment ->
model + 1
Decrement ->
model - 1
```
[Live Example](http://elm-lang.org/examples/buttons)
# Cycle.js
```js
const xs = xstream.default
const {div, button, h1, makeDOMDriver} = CycleDOM
function main(sources) {
const action$ = xs.merge(
sources.DOM.select('.dec').events('click').mapTo(-1),
sources.DOM.select('.inc').events('click').mapTo(+1)
)
const count$ = action$.fold((x, y) => x + y, 0)
const vdom$ = count$.map(count =>
div([
h1(count.toString()),
button('.dec', 'Decrement'),
button('.inc', 'Increment')
])
)
return { DOM: vdom$ }
}
```
[Live Example on JSBin](https://jsbin.com/huxoduh/1/edit?html,js,output)
# Jumpsuit
```js
const CounterState = State({
initial: { count: 0 },
increment: ({ count }) => ({ count: count + 1 }),
decrement: ({ count }) => ({ count: count - 1 })
})
const Counter = Component({
render() {
return (
{ this.props.count }
Increment
Decrement
)
}
}, (state) => ({ count: state.counter.count }))
const globalState = { counter: CounterState }
Render(globalState, )
```
[Live Example on WebpackBin](http://www.webpackbin.com/4JkiMmkKM)
# Mobx
```jsx
const store = new class CounterStore {
@observable count = 0
@action increment = () => this.count++
@action decrement = () => this.count--
}
const Counter = observer(() => {
return (
{store.count}
Increment
Decrement
)
})
```
[Live Example on JSBin](http://jsbin.com/zedoco/2/edit?js,output)
# Choo
```js
app.model({
state: { count: 0 },
reducers: {
increment: (state) => ({ count: state.count + 1 }),
decrement: (state) => ({ count: state.count - 1 })
}
})
const view = (state, previousState, send) => {
return html`
${state.count}
Increment
Decrement`
function increment() { send('increment') }
function decrement() { send('decrement') }
}
app.router([['/', view]])
document.body.appendChild(app.start())
```
[View on WebpackBin](http://www.webpackbin.com/Nk8CLwg5M)
# Marko
```marko
class {
onCreate() {
this.state = {count: 0};
}
increment(delta) {
this.state.count += delta;
}
}
${state.count}
Increment
Decrement
```
[Try Online at markojs.com](http://markojs.com/try-online/?gist=8aa2a490d9426648d9fee81b7964606f)