mirror of https://github.com/tc39/test262.git
31 lines
1.0 KiB
JavaScript
31 lines
1.0 KiB
JavaScript
// Copyright 2009 the Sputnik 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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info: |
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If the length property is changed, every property whose name
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is an array index whose value is not smaller than the new length is automatically deleted
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es5id: 15.4.5.2_A3_T2
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description: >
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If new length greater than the name of every property whose name
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is an array index
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---*/
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var x = [];
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x[1] = 1;
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x[3] = 3;
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x[5] = 5;
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x.length = 4;
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assert.sameValue(x.length, 4, 'The value of x.length is expected to be 4');
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assert.sameValue(x[5], undefined, 'The value of x[5] is expected to equal undefined');
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assert.sameValue(x[3], 3, 'The value of x[3] is expected to be 3');
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x.length = new Number(6);
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assert.sameValue(x[5], undefined, 'The value of x[5] is expected to equal undefined');
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x.length = 0;
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assert.sameValue(x[0], undefined, 'The value of x[0] is expected to equal undefined');
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x.length = 1;
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assert.sameValue(x[1], undefined, 'The value of x[1] is expected to equal undefined');
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