UseCase of Remove a key from JavaScript object

The Object.keys() method in JavaScript is used to retrieve an array of the enumerable property names of an object. It returns an array containing the keys of the object.

There are two approaches to solving this problem which are discussed below: 

  • For adding any property, one could either use object_name.property_name = value (or) object_name[“property_name”] = value.
  • For deleting any property, one could easily use delete object_name.property_name (or)  delete object_name[“property_name”].




How to remove a key-value pair from JavaScript object?

JavaScript object is a powerful data structure that combines keys and values. Sometimes, we need to delete a specific key-value from an object. It can be done using the approaches given below.

How to remove a key-value from JavaScript object ?

There are several methods that can be used to remove a key from a JavaScript object:

Table of Content

  • Using the reduce() and filter() methods
  • Using the delete operator
  • Destructuring with the Rest Operator
  • Using Object.assign()
  • Using Object.fromEntries() and Object.entries()
  • Using _.omit method of Underscore.js library
  • UseCase of Remove a key from JavaScript object

Similar Reads

1. Using the reduce() and filter() methods

The reduce() and the filter() methods of JavaScript can together be used to remove a key from an JavaScript object....

2. Using the delete operator

The delete operator in JavaScript can be used to remove a property (key-value pair) from an object....

3. Destructuring with the Rest Operator

Destructuring an object using the rest operator creates a new object without a specified property, keeping the remaining properties from the original object....

4. Using Object.assign()

Using Object.assign() allows you to create a new object without a specified property by copying all properties except the one you want to remove....

5. Using Object.fromEntries() and Object.entries()

The Object.entries() will be used to convert the object into an array of key-value pairs. Then, we use Array.filter() to exclude the key-value pair with the specified key. Finally, we use Object.fromEntries() to convert the filtered array back into an object....

6. Using _.omit method of Underscore.js library to remove a key from object

The underscore.js is an JavaScript library that can be included in an HTML document through its CDN Link and then you are allowed to use its inbuilt functions....

UseCase of Remove a key from JavaScript object

1. JavaScript Object keys() Method...