Collect.js only() Method

The only() method is used to return the items from the given collection with the specified keys. It takes the key as a parameter and returns the item mapped with that key.

Syntax:

collect(array).only(key)

Parameters: The collect() method takes one argument that is converted into the collection and then only the () method is applied to it. The only() method holds the key as a parameter.

Return Value: This method returns the items from the given collection with the specified keys.

Module Installation: Install collect.js module using the following command from the root directory of your project:

npm install collect.js

The below example illustrates the only() method in collect.js:

Example 1: Filename: index.js

Run the index.js file using the following command:

node index.js

Output:

[ 2, 5 ]

Example 2: Filename: index.js

Run the index.js file using the following command:

node index.js

Output:

{ name: 'Rahul', dob: '25-10-96' }