Collect.js flatten() Method

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Collect.js is a wrapper library for working with arrays and objects which is dependency-free and easy to use. The flatten() method is used to flatten a multi-dimensional collection into a single dimensional collection and returns the flatten single dimensional collection elements.

Syntax:

collect(array).flatten()

Parameters: The collect() method takes one argument that is converted into the collection and then flatten() method is applied on it.

Return Value: This method returns the flatten single dimensional collection elements.

Example 1: Below example illustrates the flatten() method in collect.js

HTML

const collect = require('collect.js'); 
  
let obj = [ 
    { 
        name: 'Rahul', 
        score: 98, 
    }, 
    { 
        name: 'Aditya', 
        score: 96, 
    }, 
    { 
        name: 'Abhishek', 
        score: 80 
    } 
]; 
   
const collection = collect(obj);  
const flatten_Val = collection.flatten(1);  
console.log(flatten_Val.all()); 

Output:

[ 'Rahul', 98, 'Aditya', 96, 'Abhishek', 80 ]

Example 2:

html

const collect = require('collect.js'); 
   
let arr = [ 
    ['Geeks', 'GFG', 'zambiatek'], 
    [10, 20, 30, 40, 50] 
]; 
   
const collection = collect(arr); 
   
const flatten_Val = collection.flatten(1); 
   
console.log(flatten_Val.all()); 

Output:

[ 'Geeks', 'GFG', 'zambiatek', 10, 20, 30, 40, 50 ]

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