Reflect.get()
Baseline
Widely available
This feature is well established and works across many devices and browser versions. Itās been available across browsers since āØSeptember 2016ā©.
The Reflect.get() static method is like the property accessor syntax, but as a function.
Try it
const object = {
x: 1,
y: 2,
};
console.log(Reflect.get(object, "x"));
// Expected output: 1
const array = ["zero", "one"];
console.log(Reflect.get(array, 1));
// Expected output: "one"
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.
receiverOptional-
The value of
thisprovided for the call totargetif a getter is encountered.
Return value
The value of the property.
Exceptions
TypeError-
Thrown if
targetis not an object.
Description
Reflect.get() provides the reflective semantic of a property access. That is, Reflect.get(target, propertyKey, receiver) is semantically equivalent to:
target[propertyKey];
Note that in a normal property access, target and receiver would observably be the same object.
Reflect.get() invokes the [[Get]] object internal method of target.
Examples
Using Reflect.get()
// Object
const obj1 = { x: 1, y: 2 };
Reflect.get(obj1, "x"); // 1
// Array
Reflect.get(["zero", "one"], 1); // "one"
// Proxy with a get handler
const obj2 = new Proxy(
{ p: 1 },
{
get(t, k, r) {
return `${k}bar`;
},
},
);
Reflect.get(obj2, "foo"); // "foobar"
// Proxy with get handler and receiver
const obj3 = new Proxy(
{ p: 1, foo: 2 },
{
get(t, prop, receiver) {
return `${receiver[prop]}bar`;
},
},
);
Reflect.get(obj3, "foo", { foo: 3 }); // "3bar"
Specifications
| Specification |
|---|
| ECMAScriptĀ® 2026 LanguageĀ Specification # sec-reflect.get |