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49 lines
1.2 KiB
JavaScript
49 lines
1.2 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-object.getownpropertynames
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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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Object.getOwnPropertyNames ( O )
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1. Return ? GetOwnPropertyKeys(O, String).
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GetOwnPropertyKeys ( O, type )
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1. Let obj be ? ToObject(O).
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2. Let keys be ? obj.[[OwnPropertyKeys]]().
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[...]
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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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features: [arrow-function]
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includes: [compareArray.js]
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---*/
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var obj = {};
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Object.defineProperty(obj, "a", {
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get: function() {},
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set: function(_value) {},
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enumerable: true,
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configurable: true,
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})
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obj.b = 2;
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Object.defineProperty(obj, "a", {
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set: function(_value) {},
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});
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assert.compareArray(Object.getOwnPropertyNames(obj), ["a", "b"]);
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var arr = [];
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arr.a = 1;
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Object.defineProperty(arr, "length", {value: 2});
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assert.compareArray(Object.getOwnPropertyNames(arr), ["length", "a"]);
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