number.issafeinteger/implementation.js

An ES-spec-compliant Number.isSafeInteger shim/polyfill/replacement that works as far down as ES3

'use strict';

var IsIntegralNumber = require('es-abstract/2023/IsIntegralNumber');
var abs = Math.abs;
var firstUnsafeInteger = 0x20000000000000; // 2 ** 53

module.exports = function isSafeInteger(value) {
	return IsIntegralNumber(value) && abs(value) < firstUnsafeInteger;
};