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December 24, 2017 06:55
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JS Bin React Clock // source https://jsbin.com/revuqag
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta name="description" content="React Clock"> | |
| <meta charset="utf-8"> | |
| <meta name="viewport" content="width=device-width"> | |
| <title>JS Bin</title> | |
| </head> | |
| <body> | |
| <div id="root"></div> | |
| <script src="https://fb.me/react-15.1.0.js"></script> | |
| <script src="https://fb.me/react-dom-15.1.0.js"></script> | |
| <script id="jsbin-javascript"> | |
| class Clock extends React.Component { | |
| constructor(props) { | |
| super(props); | |
| this.state = {date: new Date()}; | |
| } | |
| componentDidMount() { | |
| this.timerID = setInterval( | |
| () => this.tick(), | |
| 1000 | |
| ); | |
| } | |
| componentWillUnmount() { | |
| clearInterval(this.timerID) | |
| } | |
| tick() { | |
| this.setState({ | |
| date: new Date() | |
| }); | |
| } | |
| render() { | |
| return ( | |
| React.createElement("div", null, | |
| React.createElement("h1", null, "Hello, world!"), | |
| React.createElement("h2", null, "It is ", this.state.date.toLocaleTimeString(), ".") | |
| ) | |
| ); | |
| } | |
| } | |
| function App() { | |
| return ( | |
| React.createElement("div", null, | |
| React.createElement(Clock, null) | |
| ) | |
| ) | |
| } | |
| ReactDOM.render( | |
| React.createElement(App, null), | |
| document.getElementById('root') | |
| ); | |
| </script> | |
| <script id="jsbin-source-javascript" type="text/javascript"> | |
| class Clock extends React.Component { | |
| constructor(props) { | |
| super(props); | |
| this.state = {date: new Date()}; | |
| } | |
| componentDidMount() { | |
| this.timerID = setInterval( | |
| () => this.tick(), | |
| 1000 | |
| ); | |
| } | |
| componentWillUnmount() { | |
| clearInterval(this.timerID) | |
| } | |
| tick() { | |
| this.setState({ | |
| date: new Date() | |
| }); | |
| } | |
| render() { | |
| return ( | |
| <div> | |
| <h1>Hello, world!</h1> | |
| <h2>It is {this.state.date.toLocaleTimeString()}.</h2> | |
| </div> | |
| ); | |
| } | |
| } | |
| function App() { | |
| return ( | |
| <div> | |
| <Clock /> | |
| </div> | |
| ) | |
| } | |
| ReactDOM.render( | |
| <App />, | |
| document.getElementById('root') | |
| ); | |
| </script></body> | |
| </html> |
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Learn more about bidirectional Unicode characters
| class Clock extends React.Component { | |
| constructor(props) { | |
| super(props); | |
| this.state = {date: new Date()}; | |
| } | |
| componentDidMount() { | |
| this.timerID = setInterval( | |
| () => this.tick(), | |
| 1000 | |
| ); | |
| } | |
| componentWillUnmount() { | |
| clearInterval(this.timerID) | |
| } | |
| tick() { | |
| this.setState({ | |
| date: new Date() | |
| }); | |
| } | |
| render() { | |
| return ( | |
| React.createElement("div", null, | |
| React.createElement("h1", null, "Hello, world!"), | |
| React.createElement("h2", null, "It is ", this.state.date.toLocaleTimeString(), ".") | |
| ) | |
| ); | |
| } | |
| } | |
| function App() { | |
| return ( | |
| React.createElement("div", null, | |
| React.createElement(Clock, null) | |
| ) | |
| ) | |
| } | |
| ReactDOM.render( | |
| React.createElement(App, null), | |
| document.getElementById('root') | |
| ); |
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