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17 componentDidMount() { 18 if (this.props.enabled) { 19 this.start(); 20 } 21 }
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20 componentDidMount() { 21 setInterval(this.countingSecond, 1000); 22 }
11 componentDidMount() { 12 this.interval = setInterval(this.props.onTick, 1000); 13 }
12 componentDidMount() { 13 if (this.props.time - Date.now() > 1000) { 14 this._interval = setInterval(() => { 15 this.forceUpdate(); 16 }, 100); 17 } 18 }
15 function withTimer<Props extends TimerData>( 16 WrappedComponent: React.ComponentType<Props>, 17 intervalInMs: number = 60 * 1000, 18 ): React.ComponentType<Omit<Props, keyof TimerData>> { 19 return class extends React.Component<Omit<Props, keyof TimerData>, TimerData> { 20 intervalId?: number; 21 22 static displayName = wrapComponentName(WrappedComponent, withTimer.name); 23 24 state: TimerData = { 25 currentTime: getCurrentTime(), 26 }; 27 28 componentDidMount() { 29 this.intervalId = window.setInterval( 30 () => this.setState({ currentTime: getCurrentTime() }), 31 intervalInMs, 32 ); 33 document.addEventListener('visibilitychange', this.onPageVisibilityChange); 34 } 35 36 componentWillUnmount() { 37 clearInterval(this.intervalId); 38 document.removeEventListener('visibilitychange', this.onPageVisibilityChange); 39 } 40 41 onPageVisibilityChange = () => { 42 // Page visibility changes when tabs go in and out of focus. When tabs 43 // are out of focus, mobile browsers slow down timers, so we run an 44 // additional check to make sure the page state has not drifted too far 45 // from the wall clock 46 const now = getCurrentTime(); 47 if ( 48 !document.hidden && 49 differenceInMilliseconds(now, this.state.currentTime) > intervalInMs 50 ) { 51 this.setState({ currentTime: now }); 52 } 53 }; 54 55 render() { 56 // TODO: remove as Props hack as defined in: 57 // https://github.com/Microsoft/TypeScript/issues/28938#issuecomment-450636046 58 return <WrappedComponent {...this.state} {...(this.props as Props)} />; 59 } 60 }; 61 }
18 function subscribeToIntervalTick() { 19 const interval = setInterval(() => { 20 setTickTock(!tickTock) 21 }, 500) 22 return () => clearInterval(interval) 23 },
24 public componentDidMount(): void { 25 this.task = window.setInterval(() => this.tick(), 20); 26 }
38 componentDidMount() { 39 setInterval(() => { 40 this.setState({ now: Date.now() }); 41 }, 1000); 42 }
8 componentDidMount() { 9 document.addEventListener('keydown', this.handleOnKeyDown); 10 }
29 function SetInterval() { 30 this.key = {}; 31 32 /** 33 * @param {Function} fn 34 * @param {Number} interval 35 * @param {String} key 36 */ 37 this.start = function start(fn, interval, key) { 38 if (!this.key[key]) { 39 this.key[key] = setInterval(function () { 40 fn(); 41 }, interval); 42 } 43 } 44 45 /** 46 * @param {String} key 47 */ 48 this.clear = function clear(key) { 49 if (this.key[key]) { 50 clearInterval(this.key[key]); 51 delete this.key[key]; 52 } 53 } 54 }