Tutorial Gateway

JavaScript Split String

by

The JavaScript Split function is one of the String function, which is used to split the original string into array of substring based on the separator we specified and returns them in an array. JavaScript Split string function will accept two arguments, first argument is the separator you want to use and the second integer value is used to restrict the output.

The JavaScript string Split function will not alter the original string. In this article we will show you, How to write Split string function in JavaScript Programming Language with example.

The basic syntax of the string Split function in JavaScript Programming Language is as shown below:

String_Object.split(Separator, limit)
  • String_Object: Please specify the valid string on which you want to perform Splitting.
  • Separator: Please specify the separator (such as empty space, ‘,’or ‘.’) you want to use. It can be string literal or JavaScript Regular Expression.
  • Limit: Please specify the integer number. This argument will restrict the number of elements written by the array.

NOTE:

  • If you omit the first argument then, JavaScript Split function will split each and every individual character and assign them to array.
  • If you omit the second index then, JS string Split function will start from the beginning and continue till end.

JavaScript Split Function Example

The following set of examples will help you understand the string Split function.

<!DOCTYPE html>
<html>
<head>
    <title> Split JavaScript </title>
</head>
<body>
    <h1> JavaScript Split Function </h1>
<script>
    var Str1 = "We are Abc working in abc company since abc years";
    var Str2 = Str1.split("");
    var Str3 = Str1.split(" ");
    var Str4 = Str1.split(" ", 4);
    var Str5 = Str1.split(/abc/i);
    var Str6 = Str1.split(/abc/i, 2);
 
    document.write(Str2 + "<br \>");
    document.write(Str3 + "<br \>");
    document.write(Str4 + "<br \>");
    document.write(Str5 + "<br \>");
    document.write(Str6 + "<br \>");
</script>
</body>
</html>

OUTPUT

JavaScript SPLIT Function

ANALYSIS

In this JS split string function example, First, we declared the String variable Str1 and assigned corresponding value using following statement

var Str1 = "We are Abc working in abc company since abc years";

The following JS string split statement will split the original string into individual characters

var Str2 = Str1.split("");

Next, We used the empty space as separator for the JavaScript Split string function. So, the following statement will split the original string into array of words based on white space

var Str3 = Str1.split(" ");

Next, We used the second argument to restrict the array output to four.

var Str4 = Str1.split(" ", 4);

Next, We used substring “abc” as separator for the Js Split string function. Here i is the regular expression to perform case insensitive search

var Str5 = Str1.split(/abc/i);