W3cubDocs

/JavaScript

Reflect.get

The static Reflect.get() method works like getting a property from an object (target[propertyKey]) as a function.

Syntax

Reflect.get(target, propertyKey[, receiver])

Parameters

target
The target object on which to get the property.
propertyKey
The name of the property to get.
receiver
The value of this provided for the call to target if a getter is encountered.

Return value

The value of the property.

Exceptions

A TypeError, if target is not an Object.

Description

The Reflect.get method allows you to get a property on an object. It is like the property accessor syntax as a function.

Examples

Using Reflect.get()

// Object
var obj = { x: 1, y: 2 };
Reflect.get(obj, 'x'); // 1

// Array
Reflect.get(['zero', 'one'], 1); // "one"

// Proxy with a get handler
var x = {p: 1};
var obj = new Proxy(x, {
  get(t, k, r) { return k + 'bar'; }
});
Reflect.get(obj, 'foo'); // "foobar"

Specifications

Specification Status Comment
ECMAScript 2015 (6th Edition, ECMA-262)
The definition of 'Reflect.get' in that specification.
Standard Initial definition.
ECMAScript 2017 Draft (ECMA-262)
The definition of 'Reflect.get' in that specification.
Draft

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support 49 42 (42) No support No support 10
Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support No support 49 42.0 (42) No support No support 10

See also

© 2005–2017 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Reflect/get