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- '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;
- };
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