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', 'neveropen'], [10, 20, 30, 40, 50] ]; const collection = collect(arr); const flatten_Val = collection.flatten(1); console.log(flatten_Val.all()); |
Output:
[ 'Geeks', 'GFG', 'neveropen', 10, 20, 30, 40, 50 ]
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