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vitalybe/useMemo.js

Created July 9, 2019 20:19
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useMemo.js
function formatDate(date) {
const hour = date.getHours();
const minute = date.getMinutes();
const second = date.getSeconds();
return (`${hour}:${minute}:${second}`);
}
const prettyDate = useMemo(() => formatDate(currentDate), [currentDate]);
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