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JavaScript Reflect get() Method

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JavaScript Reflect.get() method in JavaScript is used to allow users to get the property from an object as a function. This method always returns the value of the property.

Syntax:

Reflect.get(target, propertyKey, receiver) 

Parameters: This method accepts three parameters as mentioned above and described below:

  • target: This parameter is used to get the property and it is the target object.
  • propertyKey: This parameter is used to get the name of the key.
  • receiver: It is an optional parameter and it is the value of this provided for the call to object if a getter is encountered.

Return value: This method always returns the value of the property.

Exceptions: A TypeError is an exception given as the result when the target is not an Object.

The below examples illustrate the Reflect.get() Method in JavaScript:

Example 1: In this example, we will get the property of the object using the Reflect.get() Method in JavaScript.

javascript

const object = {
    val1: 1,
    val2: 2
};
console.log(Reflect.get(object, 'val1'));
 
const abc = { val: 21 };
console.log(Reflect.get(abc, "val") === 21);
console.log(Reflect.get(abc, "x") === undefined);
console.log(Reflect.get(abc, "y") === 21);
 
const array1 = ['geeks1', 'geeks2', 'geeks3', 'geeks4'];
console.log(Reflect.get(array1, 3));

                    

Output
1
true
true
false
geeks4

Example 2: In this example, we will get the property of the object abc using the Reflect.get() Method in JavaScript.

javascript

let abc = { val: 1 };
 
let obj1 = new Proxy(abc, {
    get(t, k, r) {
        return k + 'for' + k
    }
})
console.log(Reflect.get(obj1, 'geeks'));
 
const valx = { prop: 21 };
const valy = Object.create(valx);
console.log(
    Reflect.get(valy, "prop") === 12
);
console.log(
    Reflect.get(valy, "prop") === 21
);

                    

Output
geeksforgeeks
false
true

Supported Browsers:

The browsers are supported by JavaScript Reflect.get() Methods are listed below:

  • Google Chrome 49 and above
  • Edge 12 and above
  • Firefox 42 and above
  • Opera 36 and above
  • Safari 10 and above

We have a complete list of Javascript Reflects methods, to check those go through the JavaScript Reflect Reference article.



Last Updated : 08 Aug, 2023
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