var $ = require('../internals/export'); var DESCRIPTORS = require('../internals/descriptors'); var anObject = require('../internals/an-object'); var toPrimitive = require('../internals/to-primitive'); var definePropertyModule = require('../internals/object-define-property'); var fails = require('../internals/fails'); // MS Edge has broken Reflect.defineProperty - throwing instead of returning false var ERROR_INSTEAD_OF_FALSE = fails(function () { // eslint-disable-next-line es/no-reflect -- required for testing Reflect.defineProperty(definePropertyModule.f({}, 1, { value: 1 }), 1, { value: 2 }); }); // `Reflect.defineProperty` method // https://tc39.es/ecma262/#sec-reflect.defineproperty $({ target: 'Reflect', stat: true, forced: ERROR_INSTEAD_OF_FALSE, sham: !DESCRIPTORS }, { defineProperty: function defineProperty(target, propertyKey, attributes) { anObject(target); var key = toPrimitive(propertyKey, true); anObject(attributes); try { definePropertyModule.f(target, key, attributes); return true; } catch (error) { return false; } } });