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