core-js/modules/es.number.is-safe-integer.js

'use strict';
var $ = require('../internals/export');
var isIntegralNumber = require('../internals/is-integral-number');

var abs = Math.abs;

// `Number.isSafeInteger` method
// https://tc39.es/ecma262/#sec-number.issafeinteger
$({ target: 'Number', stat: true }, {
  isSafeInteger: function isSafeInteger(number) {
    return isIntegralNumber(number) && abs(number) <= 0x1FFFFFFFFFFFFF;
  }
});