Open In App

Collect.js has() Method

Improve
Improve
Like Article
Like
Save
Share
Report

The has() method in Collect.js is used to check whether the key exists in the collection or not. In JavaScript, the array is first converted to a collection and then the function is applied to the collection.

Syntax:  

data.has('key')

Parameters:  

  • Key: This parameter holds a new operational value.

Return value: This method returns a Boolean value either True or False.

Below examples illustrate the has() function in Collect.js

Example 1: Here in this example, we take a collection and then using the has() function we check for the single value. 

Javascript




// Importing the collect.js module
const collect = require('collect.js');
  
const collection = collect({
  name : 'GeeksforGeeks',
  Field : 'Education',
  Address : 'Noida',
});
  
console.log(collection.has('name'));


Output:  

true

Example 2: Here in this example, we take a collection and then using the has() function we check for the multiple values.  

Javascript




// Importing the collect.js module
const collect = require('collect.js');
  
const collection = collect({
  name : 'GeeksforGeeks',
  Field : 'Education',
  Address : 'Noida',
});
  
console.log(collection.has('name', 'Field', 'Address'));


Output:  

true

Reference: https://collect.js.org/api/has.html


Last Updated : 16 Oct, 2020
Like Article
Save Article
Previous
Next
Share your thoughts in the comments
Similar Reads