Slice vs Splice vs Split in JavaScript – Key Differences with Real Examples

Introduction When working with JavaScript, developers often get confused between slice(), splice(), and split(). While they sound similar, they serve completely different purposes. In this article, you'll learn the exact difference, when to use each method, and see working examples you can apply in real projects. 1. slice() – Extract Without Changing Original Array The slice() method is used to extract a portion of an array without modifying the original array. Syntax array . slice ( start , end ) Example let employee = [ ' Bala ' , ' Rahul ' , ' Rohit ' , ' Vicky ' ]; let result = employee . slice ( 1 , 3 ); console . log ( result ); console . log ( employee ); Output: [ 'Rahul', 'Rohit' ] [ 'Bala', 'Rahul', 'Rohit', 'Vicky' ] Key Points Does NOT modify original array Returns a new array End index is NOT included 2. splice() – Modify Original Array The splice() method is used to add, remove, or replace elements in an array. Syntax array . splice ( start , deleteCount , item1 , item2 ,