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 : 'neveropen', 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 : 'neveropen', Field : 'Education', Address : 'Noida', }); console.log(collection.has('name', 'Field', 'Address')); |
Output:
true
Reference: https://collect.js.org/api/has.html
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