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
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
Specification |
---|
ECMAScript Language Specification # sec-reflect.get |
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