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node_modules/es-abstract/2015/IsDataDescriptor.js
| 23 lines
| 468 B
| application/javascript
| JavascriptLexer
|
r789 | 'use strict'; | |||
var has = require('has'); | ||||
var assertRecord = require('../helpers/assertRecord'); | ||||
var Type = require('./Type'); | ||||
// https://www.ecma-international.org/ecma-262/6.0/#sec-isdatadescriptor | ||||
module.exports = function IsDataDescriptor(Desc) { | ||||
if (typeof Desc === 'undefined') { | ||||
return false; | ||||
} | ||||
assertRecord(Type, 'Property Descriptor', 'Desc', Desc); | ||||
if (!has(Desc, '[[Value]]') && !has(Desc, '[[Writable]]')) { | ||||
return false; | ||||
} | ||||
return true; | ||||
}; | ||||