mirror of https://github.com/tc39/test262.git
23 lines
747 B
JavaScript
23 lines
747 B
JavaScript
// Copyright 2015 Microsoft Corporation. All rights reserved.
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// This code is governed by the license found in the LICENSE file.
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/*---
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description: Source is a sparse array use onlyStrict
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es6id: 22.1.2.1
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flags: [onlyStrict]
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---*/
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var array = [0, 1, -2, 4, -8, , -32, 64, , 256, -512, 1024];
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var arrayIndex = -1;
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function mapFn(value, k) {
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arrayIndex++;
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assert.sameValue(value, array[arrayIndex], "From mapFn Element mismatch for index " + arrayIndex + ".");
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assert.sameValue(k, arrayIndex, "From mapFn index mismatch for " + arrayIndex + ".");
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return value;
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}
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var a = Array.from(array, mapFn);
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for (var j = 0; j < a.length; j++) {
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assert.sameValue(a[j], array[j], "Elements mismatch at " + j + ".");
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}
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