integers.js (823B)
1 // Copyright (c) 2014 Ryan Lewis. All rights reserved. 2 // This code is governed by the BSD license found in the LICENSE file. 3 4 /*--- 5 es6id: 20.1.2.3 6 author: Ryan Lewis 7 description: Number.isInteger should return true if called with an integer. 8 ---*/ 9 10 assert.sameValue(Number.isInteger(478), true, 'Number.isInteger(478)'); 11 assert.sameValue(Number.isInteger(-0), true, '-0'); 12 assert.sameValue(Number.isInteger(0), true, '0'); 13 assert.sameValue(Number.isInteger(-1), true, '-1'); 14 assert.sameValue(Number.isInteger(9007199254740991), true, '9007199254740991'); 15 assert.sameValue(Number.isInteger(-9007199254740991), true, '-9007199254740991'); 16 assert.sameValue(Number.isInteger(9007199254740992), true, '9007199254740992'); 17 assert.sameValue(Number.isInteger(-9007199254740992), true, '-9007199254740992'); 18 19 reportCompare(0, 0);