felladrin/example.js

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Knowing if a number is odd in JavaScript without using division.

Raw

	import { isOdd } from "./isOdd.mjs";

	isOdd(7); // returns true
	isOdd(8); // returns false
	isOdd(9); // returns true

Raw

	export function isOdd(n) {
	return Boolean(n & 1 == 1)
	}

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