In this article, we will try to understand how to add properties to an object as well as how to add or remove the properties from an object in JavaScript. Show Before we actually go and see the addition and removal of properties from an object let us first understand the basics of an object in JavaScript. Object:
Syntax: By using the following syntax one can easily create an object with a different number of properties. let object_name = { property_name: value, ... } Now that we have understood the basic details associated with the object in JavaScript, let us see some examples to add properties in an object as well as how to remove properties from an object. Adding/Removing Properties from an Object:
Let us see some examples in order to have a better understanding of how to add and remove properties from an object. Example 1: In this example, we first create an object, and further we will be adding some properties to it. How to remove a property from JavaScript object ? Improve Article Save Article Like Article
Improve Article Save Article JavaScript delete keyword is used to delete properties of an object in javaScript. Syntax: delete object.property or delete object[property] Note:
Example 1: This example deletes the address property of an object. html
Output: Remove a property from JavaScript object Example 2: This example deletes the age property of an object. HTML
Output: Remove a property from JavaScript object My Personal Notes arrow_drop_up Save Please Login to comment...How to remove an element from an object in JavaScript?Remove Property from an Object
The delete operator deletes both the value of the property and the property itself. After deletion, the property cannot be used before it is added back again. The delete operator is designed to be used on object properties.
How to remove key value from object in JavaScript?The delete operator is used to delete the key-value pair where the key is “key2”. console. log(obj); The output of the above code in the console will be: { key1: "value1", key3: "value3" }.
How to remove last element from object in JavaScript?Using the Array pop() Method
The Array pop() method is the simplest method used to remove the last element in an array. The pop() method returns the removed element from the original array.
How to remove first element from object in JavaScript?JavaScript Array shift()
The shift() method removes the first item of an array.
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