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node_modules/es-abstract/2017/GetOwnPropertyKeys.js
| 31 lines
| 823 B
| application/javascript
| JavascriptLexer
|
| r789 | 'use strict'; | |||
| var GetIntrinsic = require('../GetIntrinsic'); | ||||
| var hasSymbols = require('has-symbols')(); | ||||
| var $TypeError = GetIntrinsic('%TypeError%'); | ||||
| var $gOPN = GetIntrinsic('%Object.getOwnPropertyNames%'); | ||||
| var $gOPS = hasSymbols && GetIntrinsic('%Object.getOwnPropertySymbols%'); | ||||
| var keys = require('object-keys'); | ||||
| var esType = require('./Type'); | ||||
| // https://www.ecma-international.org/ecma-262/6.0/#sec-getownpropertykeys | ||||
| module.exports = function GetOwnPropertyKeys(O, Type) { | ||||
| if (esType(O) !== 'Object') { | ||||
| throw new $TypeError('Assertion failed: Type(O) is not Object'); | ||||
| } | ||||
| if (Type === 'Symbol') { | ||||
| return $gOPS ? $gOPS(O) : []; | ||||
| } | ||||
| if (Type === 'String') { | ||||
| if (!$gOPN) { | ||||
| return keys(O); | ||||
| } | ||||
| return $gOPN(O); | ||||
| } | ||||
| throw new $TypeError('Assertion failed: `Type` must be `"String"` or `"Symbol"`'); | ||||
| }; | ||||