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43 lines
1.1 KiB
43 lines
1.1 KiB
'use strict'; |
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var GetIntrinsic = require('get-intrinsic'); |
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var $TypeError = GetIntrinsic('%TypeError%'); |
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var objectKeys = require('object-keys'); |
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var callBound = require('call-bind/callBound'); |
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var callBind = require('call-bind'); |
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var $isEnumerable = callBound('Object.prototype.propertyIsEnumerable'); |
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var $pushApply = callBind.apply(GetIntrinsic('%Array.prototype.push%')); |
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var forEach = require('../helpers/forEach'); |
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var Type = require('./Type'); |
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// https://262.ecma-international.org/8.0/#sec-enumerableownproperties |
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module.exports = function EnumerableOwnPropertyNames(O, kind) { |
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if (Type(O) !== 'Object') { |
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throw new $TypeError('Assertion failed: Type(O) is not Object'); |
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} |
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var keys = objectKeys(O); |
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if (kind === 'key') { |
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return keys; |
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} |
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if (kind === 'value' || kind === 'key+value') { |
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var results = []; |
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forEach(keys, function (key) { |
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if ($isEnumerable(O, key)) { |
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$pushApply(results, [ |
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kind === 'value' ? O[key] : [key, O[key]] |
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]); |
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} |
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}); |
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return results; |
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} |
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throw new $TypeError('Assertion failed: "kind" is not "key", "value", or "key+value": ' + kind); |
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};
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