@woosh/meep-engine/src/core/math/isPowerOfTwo.js

Pure JavaScript game engine. Fully featured and production ready.

import { assert } from "../assert.js";

/**
 * Is the number a power of two?
 * e.g. 2,4,8,16 etc.
 * NOTE: only valid for non-negative integers, includes 0
 * @param {number} value
 * @returns {boolean}
 */
export function isPowerOfTwo(value) {
    assert.isNonNegativeInteger(value, 'value');

    return (value & (value - 1)) === 0;
}