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jsalonen/functional-component-with-effect.js

Last active February 6, 2019 12:34
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functional-component-with-effect.js
function Clock() {
React.useEffect(() => {
const clockIntervalId = window.setInterval(() => {
console.log('tick');
}, 1000);
return () => {
window.clearInterval(clockIntervalId);
};
}, []);
return (
<p>Clock is ticking...</p>
);
}
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