mirror of https://github.com/tc39/test262.git
28 lines
861 B
JavaScript
28 lines
861 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: Elements are updated after the call to from
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esid: sec-array.from
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---*/
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var array = [127, 4, 8, 16, 32, 64, 128];
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var arrayIndex = -1;
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function mapFn(value, index) {
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arrayIndex++;
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if (index + 1 < array.length) {
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array[index + 1] = 127;
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}
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assert.sameValue(value, 127, 'The value of value is expected to be 127');
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assert.sameValue(index, arrayIndex, 'The value of index is expected to equal the value of 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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assert.sameValue(a.length, array.length, 'The value of a.length is expected to equal the value of array.length');
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for (var j = 0; j < a.length; j++) {
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assert.sameValue(a[j], 127, 'The value of a[j] is expected to be 127');
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}
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