mirror of https://github.com/tc39/test262.git
24 lines
800 B
JavaScript
24 lines
800 B
JavaScript
|
// Copyright (c) 2016 The V8 Project authors. All rights reserved.
|
||
|
|
// This code is governed by the BSD license found in the LICENSE file.
|
||
|
|
|
||
|
|
/*---
|
||
|
|
esid: sec-number.isnan
|
||
|
|
description: >
|
||
|
|
Return false if argument is not NaN
|
||
|
|
info: |
|
||
|
|
Number.isNaN ( number )
|
||
|
|
|
||
|
|
1. If Type(number) is not Number, return false.
|
||
|
|
2. If number is NaN, return true.
|
||
|
|
3. Otherwise, return false.
|
||
|
|
---*/
|
||
|
|
|
||
|
|
assert.sameValue(Number.isNaN(0), false, "0");
|
||
|
|
assert.sameValue(Number.isNaN(-0), false, "-0");
|
||
|
|
assert.sameValue(Number.isNaN(1), false, "1");
|
||
|
|
assert.sameValue(Number.isNaN(-1), false, "-1");
|
||
|
|
assert.sameValue(Number.isNaN(1.1), false, "1.1");
|
||
|
|
assert.sameValue(Number.isNaN(1e10), false, "1e10");
|
||
|
|
assert.sameValue(Number.isNaN(Infinity), false, "Infinity");
|
||
|
|
assert.sameValue(Number.isNaN(-Infinity), false, "-Infinity");
|