mirror of https://github.com/tc39/test262.git
52 lines
1.4 KiB
JavaScript
52 lines
1.4 KiB
JavaScript
// Copyright (C) 2020 Alexey 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-enumerate-object-properties
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description: >
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Property names are returned in ascending chronological order of creation
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that is unaffected by [[DefineOwnProperty]].
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info: |
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EnumerateObjectProperties ( O )
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EnumerateObjectProperties must obtain the own property keys of the target object
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by calling its [[OwnPropertyKeys]] internal method. Property attributes of the
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target object must be obtained by calling its [[GetOwnProperty]] internal method.
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OrdinaryOwnPropertyKeys ( O )
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[...]
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3. For each own property key P of O that is a String but is not an array index,
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in ascending chronological order of property creation, do
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a. Add P as the last element of keys.
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[...]
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5. Return keys.
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includes: [compareArray.js]
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---*/
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var obj = {};
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obj.a = 1;
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obj.b = 2;
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Object.defineProperty(obj, "a", {value: 11});
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var objKeys = [];
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for (var objKey in obj) {
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objKeys.push(objKey);
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}
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assert.compareArray(objKeys, ["a", "b"]);
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var arr = [];
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Object.defineProperty(arr, "a", {
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get: function() {},
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enumerable: true,
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configurable: true,
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})
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arr.b = 2;
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Object.defineProperty(arr, "a", {
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get: function() {},
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});
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var arrKeys = [];
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for (var arrKey in arr) {
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arrKeys.push(arrKey);
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}
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assert.compareArray(arrKeys, ["a", "b"]);
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