Collect.js tap() Function

Collect.js is a fluent and convenient wrapper for working with arrays and objects. The tap() function accepts the collection as a parameter and without affecting the collection it allows the user to tap into the collection at a specific point and do anything with the item.

Installation: Install the Collect.js module using the following command:

npm install --save collect.js

Syntax:  

collection.tap(callback)

Parameters: This function takes only one parameter i.e. the callback function which executes as per user need.

Return Value: This function returns the new collection object.

Example 1: Filename-index.js 

// Requiring module
const collect = require('collect.js')

// User defined collection
var myCollection = [2, 4, 3, 1, 5]

// Function call
var newCollection = collect(myCollection)
.tap((collection) => {
    // Printing collection
    console.log(collection.all());
})

console.log(newCollection)

Run the index.js file using the following command:

node index.js

Output:

[ 2, 4, 3, 1, 5 ]
Collection { items: [ 2, 4, 3, 1, 5 ] }

Example 2: Filename-index.js 

// Requiring module
const collect = require('collect.js')

// User defined collection
var myCollection = [-1,2,0,25]

// Sorting and displaying result
collect(myCollection).sort().tap((collection) => {
    console.log(collection.all());
})

Run the index.js file using the following command:

node index.js

Output:

[ -1, 0, 2, 25 ]

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