@feugene/mu/src/is/isLength.ts

Helpful TS utilities without dependencies

/**
 * Checks if `value` is a valid array-like length.
 *
 *
 * @example
 *
 * isLength(3);
 * // => true
 *
 * isLength(Number.MIN_VALUE);
 * // => false
 *
 * isLength(Infinity);
 * // => false
 *
 * isLength('3');
 * // => false
 */
export default function isLength(value: any): boolean {
  return typeof value === 'number' && value > -1 && value % 1 === 0 && value <= Number.MAX_SAFE_INTEGER
}