locutus
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Locutus other languages' standard libraries to JavaScript for fun and educational purposes
18 lines (17 loc) • 742 B
JavaScript
const toTimeDate = (value) => {
const date = value instanceof Date ? new Date(value.getTime()) : new Date(value);
if (Number.isNaN(date.getTime())) {
throw new TypeError('Before(): invalid date input');
}
return date;
};
export function Before(left, right) {
// discuss at: https://locutus.io/golang/time/Before
// parity verified: Go 1.23
// original by: Kevin van Zonneveld (https://kvz.io)
// example 1: Before('2026-03-03T13:14:14.999Z', '2026-03-03T13:14:15.000Z')
// returns 1: true
// example 2: Before('2026-03-03T13:14:15.000Z', '2026-03-03T13:14:15.000Z')
// returns 2: false
return toTimeDate(left).getTime() < toTimeDate(right).getTime();
}