test262/test/harness/nans.js

// Copyright (C) 2017 Rick Waldron, 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
description: >
  Including nans.js will expose:

  var NaNs = [
    () => NaN,
    () => Number.NaN,
    () => NaN * 0,
    () => 0/0,
    () => Infinity/Infinity,
    () => -(0/0),
    () => Math.pow(-1, 0.5),
    () => -Math.pow(-1, 0.5),
    () => Number("Not-a-Number"),
  ];

includes: [nans.js]
---*/

for (var i = 0; i < NaNs.length; i++) {
  assert.sameValue(Number.isNaN(NaNs[i]()), true, NaNs[i].toString());
}