ghaction-upx/node_modules/es-abstract/2019/IsDataDescriptor.js
2020-01-23 08:49:02 +00:00

24 lines
468 B
JavaScript

'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;
};