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368 BJavaScriptView Raw
1var $ = require('../internals/export');
2var isInteger = require('../internals/is-integer');
3
4var abs = Math.abs;
5
6// `Number.isSafeInteger` method
7// https://tc39.github.io/ecma262/#sec-number.issafeinteger
8$({ target: 'Number', stat: true }, {
9 isSafeInteger: function isSafeInteger(number) {
10 return isInteger(number) && abs(number) <= 0x1FFFFFFFFFFFFF;
11 }
12});