JavaScript String split() Method

The JavaScript split() method divides a string into an array of substrings based on a specified separator, such as a character, string, or regular expression. It returns the array of split substrings, allowing manipulation of the original string data in various ways.

let str = "Hello and Welcome to GeeksforGeeks";
let words = str.split(" ");
console.log(words);

Syntax

str.split( separator, limit );

Parameters

• separator: It is used to specify the character, or the regular expression, to use for splitting the string. If the separator is unspecified then the entire string becomes one single array element. The same also happens when the separator is not present in the string. If the separator is an empty string ("") then every character of the string is separated.
• limit: Defines the upper limit on the number of splits to be found in the given string. If the string remains unchecked after the limit is reached then it is not reported in the array.

Return Value

This function returns an array of strings that is formed after splitting the given string at each point where the separator occurs. 

Example: The split() function divides the string "Geeks for Geeks" at "for", creating an array with two parts: ['Geeks ', ' Geeks']. It separates based on the given delimiter.

// JavaScript Program to illustrate split() method 
let str = 'Geeks for Geeks'
let array = str.split("for");
console.log(array); 

[ 'Geeks ', ' Geeks' ]

Example: The function split() creates an array of strings by splitting str wherever " " occurs.

// JavaScript Program to illustrate split() function
let str = 'It is a 5r&e@@t Day.'
let array = str.split(" ");
console.log(array);

[ 'It', 'is', 'a', '5r&e@@t', 'Day.' ]

We have a complete list of Javascript string methods, to check those please go through this Javascript String Complete reference article.

Supported Browsers

• Google Chrome 1.0
• Edge 12
• Firefox 1.0
• Opera 7.0
• Safari 1.0