| var $ = require('../internals/export'); | |
| var isInteger = require('../internals/is-integer'); | |
| var abs = Math.abs; | |
| // `Number.isSafeInteger` method | |
| // https://tc39.github.io/ecma262/#sec-number.issafeinteger | |
| $({ target: 'Number', stat: true }, { | |
| isSafeInteger: function isSafeInteger(number) { | |
| return isInteger(number) && abs(number) <= 0x1FFFFFFFFFFFFF; | |
| } | |
| }); |