'use strict'; var $TypeError = require('es-errors/type'); var callBound = require('call-bind/callBound'); var $numberToString = callBound('Number.prototype.toString'); var isInteger = require('../../helpers/isInteger'); // https://262.ecma-international.org/14.0/#sec-numeric-types-number-tostring module.exports = function NumberToString(x, radix) { if (typeof x !== 'number') { throw new $TypeError('Assertion failed: `x` must be a Number'); } if (!isInteger(radix) || radix < 2 || radix > 36) { throw new $TypeError('Assertion failed: `radix` must be an integer >= 2 and <= 36'); } return $numberToString(x, radix); // steps 1 - 12 };