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) 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
Optional -
The value of
this
provided for the call totarget
if a getter is encountered. When used withProxy
, it can be an object that inherits fromtarget
.
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 let obj = { x: 1, y: 2 } Reflect.get(obj, 'x') // 1 // Array Reflect.get(['zero', 'one'], 1) // "one" // Proxy with a get handler let x = {p: 1}; let obj = new Proxy(x, { get(t, k, r) { return k + 'bar' } }) Reflect.get(obj, 'foo') // "foobar" //Proxy with get handler and receiver let x = {p: 1, foo: 2}; let y = {foo: 3}; let obj = new Proxy(x, { get(t, prop, receiver) { return receiver[prop] + 'bar' } }) Reflect.get(obj, 'foo', y) // "3bar"
Specifications
Browser compatibility
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
get |
49 |
12 |
42 |
No |
36 |
10 |
49 |
49 |
42 |
36 |
10 |
5.0 |
See also
- A polyfill of
Reflect.get
is available incore-js
Reflect
- Property accessors
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https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Reflect/get