mout/src/number/toInt.ts

Modular Utilities

/**
 * "Convert" value into an 32-bit integer.
 * Works like `Math.floor` if val > 0 and `Math.ceil` if val < 0.
 * IMPORTANT: val will wrap at 2^31 and -2^31.
 * Perf tests: http://jsperf.com/vs-vs-parseint-bitwise-operators/7
 */
function toInt(val: number): number {
    // we do not use lang/toNumber because of perf and also because it
    // doesn't break the functionality
    return ~~val;
}

export default toInt;