JavaScript Reflect deleteProperty() Method

JavaScript Reflect.deleteProperty() method in JavaScript is used to delete a property on an object. It returns a Boolean value which indicates whether the property was successfully deleted.

Syntax:

Reflect.deleteProperty( target, propertyKey )

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

• target: This parameter deletes the property and it is the target object.
• propertyKey: This parameter is the name of the property which is to be deleted.

Return Value: This method returns a Boolean value that indicates whether the property was successfully deleted.

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

Example 1: In this example, we will delete a property of an object using Reflect.deleteProperty() method in Javascript.

undefined
[ 1, 2, 3, 4, 5 ]
[ 1, <1 empty item>, 3, 4, 5 ]
[ 1, <2 empty items>, 4, 5 ]

Example 2: In this example, we will delete a property of an object using Reflect.deleteProperty() method in Javascript.

true
false
true
true

Supported Browsers:

The browsers supported by Reflect.deleteProperty() method are listed below:

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

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