Constnium/node_modules/es-abstract/5/IsDataDescriptor.js
2022-06-23 02:27:43 +02:00

23 lines
449 B
JavaScript

'use strict';
var has = require('has');
var Type = require('./Type');
var assertRecord = require('../helpers/assertRecord');
// https://262.ecma-international.org/5.1/#sec-8.10.2
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;
};