mirror of https://github.com/tc39/test262.git
28 lines
967 B
JavaScript
28 lines
967 B
JavaScript
// Copyright (C) 2016 The V8 Project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-isnan-number
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description: >
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Return false if number is not NaN
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info: |
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isNaN (number)
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1. Let num be ? ToNumber(number).
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2. If num is NaN, return true.
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3. Otherwise, return false.
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---*/
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assert.sameValue(isNaN(0), false, "0");
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assert.sameValue(isNaN(-0), false, "-0");
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assert.sameValue(isNaN(Math.pow(2, 53)), false, "Math.pow(2, 53)");
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assert.sameValue(isNaN(-Math.pow(2, 53)), false, "-Math.pow(2, 53)");
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assert.sameValue(isNaN(1), false, "1");
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assert.sameValue(isNaN(-1), false, "-1");
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assert.sameValue(isNaN(0.000001), false, "0.000001");
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assert.sameValue(isNaN(-0.000001), false, "-0.000001");
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assert.sameValue(isNaN(1e42), false, "1e42");
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assert.sameValue(isNaN(-1e42), false, "-1e42");
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assert.sameValue(isNaN(Infinity), false, "Infinity");
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assert.sameValue(isNaN(-Infinity), false, "-Infinity");
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