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 = [ 'neveropen1' , 'neveropen2' , 'neveropen3' , 'neveropen4' ]; console.log(Reflect.get(array1, 3)); |
1 true true false neveropen4
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, 'neveropen' )); const valx = { prop: 21 }; const valy = Object.create(valx); console.log( Reflect.get(valy, "prop" ) === 12 ); console.log( Reflect.get(valy, "prop" ) === 21 ); |
neveropen 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.