29 lines
540 B
JavaScript
29 lines
540 B
JavaScript
export default class Timer {
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constructor(onTick = null) {
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this.elapsed = 0;
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this.intervalId = null;
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this.onTick = onTick;
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}
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start() {
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if (this.intervalId) {
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clearInterval(this.intervalId);
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}
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this.elapsed = 0;
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this.intervalId = setInterval(() => {
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this.elapsed += 1;
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if (this.onTick) {
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this.onTick(this.elapsed);
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}
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}, 1000);
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}
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stop() {
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if (this.intervalId) {
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clearInterval(this.intervalId);
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this.intervalId = null;
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}
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this.elapsed = 0;
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}
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}
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