mirror of https://github.com/tc39/test262.git
30 lines
863 B
JavaScript
30 lines
863 B
JavaScript
// Copyright (C) 2019 Aleksey Shvayka. 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-json.stringify
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description: >
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Undefined values in replacer array are ignored.
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info: |
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JSON.stringify ( value [ , replacer [ , space ] ] )
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[...]
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4. If Type(replacer) is Object, then
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[...]
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4. Repeat, while k < len,
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a. Let v be ? Get(replacer, ! ToString(k)).
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[...]
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f. If item is not undefined and item is not currently an element of PropertyList, then
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i. Append item to the end of PropertyList.
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---*/
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assert.sameValue(JSON.stringify({undefined: 1}, [undefined]), '{}');
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assert.sameValue(JSON.stringify({key: 1, undefined: 2}, [,,,]), '{}');
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var sparse = new Array(3);
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sparse[1] = 'key';
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assert.sameValue(
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JSON.stringify({undefined: 1, key: 2}, sparse),
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'{"key":2}'
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);
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