equal
deleted
inserted
replaced
4 |
4 |
5 class Clock extends Component { |
5 class Clock extends Component { |
6 |
6 |
7 state = { |
7 state = { |
8 time: moment().format('H:mm:ss'), |
8 time: moment().format('H:mm:ss'), |
|
9 intervalID: null |
9 } |
10 } |
10 |
11 |
11 componentDidMount() { |
12 componentDidMount() { |
12 setInterval(() => { |
13 const intervalID = setInterval(() => { |
13 const time = moment().format('H:mm:ss'); |
14 const time = moment().format('H:mm:ss'); |
14 this.setState({ time }); |
15 this.setState({ time }); |
15 }, 1000); |
16 }, 1000); |
|
17 |
|
18 this.setState({ intervalID }); |
|
19 } |
|
20 |
|
21 componentWillUnmount() { |
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22 clearInterval(this.state.intervalID); |
16 } |
23 } |
17 |
24 |
18 render() { |
25 render() { |
19 return ( |
26 return ( |
20 <Label bsStyle="info">{ this.state.time }</Label> |
27 <Label bsStyle="info">{ this.state.time }</Label> |