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22 lines
814 B
JavaScript
22 lines
814 B
JavaScript
// Copyright (C) 2015 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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es6id: 19.1.2.10
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description: >
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Object.is ( value1, value2 )
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...
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6. If Type(x) is Number, then
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a. If x is NaN and y is NaN, return true.
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b. If x is +0 and y is -0, return false.
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c. If x is -0 and y is +0, return false.
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d. If x is the same Number value as y, return true.
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e. Return false.
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...
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---*/
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assert.sameValue(Object.is(NaN, NaN), true, "`Object.is(NaN, NaN)` returns `true`");
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assert.sameValue(Object.is(-0, -0), true, "`Object.is(-0, -0)` returns `true`");
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assert.sameValue(Object.is(+0, +0), true, "`Object.is(+0, +0)` returns `true`");
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assert.sameValue(Object.is(0, 0), true, "`Object.is(0, 0)` returns `true`");
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