JavaScript | Split a string with multiple separators

26 Jul, 2021
Given a statement which contains the string and separators, the task is to split the string into substring.String split() Method: The str.split() function is used to split the given string into array of strings by separating it into substrings using a specified separator provided in the argument. 
Syntax:  
str.split(separator, limit)
Parameters: This function accepts three parameters as mentioned above and described below: 
str: This parameter holds the string to be split.
separator: It is optional parameter. It defines the character or the regular expression to use for breaking the string. If not used, the same string is returned (single item array).
limit: It is optional parameter. It is an integer which specifies the number of splits. All the items after limit are discarded.
Array join() function: The Array.join() function is used to join the elements of the array together into a string. This method adds the elements of an array into a string and returns the newly created string. The elements separates by a specific separator. Default separator used is comma (, ). 
Syntax: 
array.join(separator)
Parameters: This function accepts two parameters as mentioned above and described below: 
array: The array to be joined.
separator: It is optional parameter. It specifies the separator to be used. If not passes, the default separator comma is used.
Example 1: This example splits a string by 2 separators Comma(, ) and space(‘ ‘) using .split() function. 
html
<!DOCTYPE html><html>    <head>        <title>            JavaScript | Split a string with            multiple separators.        </title>    </head>         <body style = "text-align:center;" id = "body">                 <h1 style = "color:green;" >            GeeksForGeeks        </h1>                 <p id="GFG_UP" style="font-size:18px; font-weight:bold;"></p>                  <button onclick = "gfg_Run()">            split        </button>                 <p id="GFG_DOWN" style="font-size:25px; font-weight:bold;"></p>                  <script>            var el_up = document.getElementById("GFG_UP");            var el_down = document.getElementById("GFG_DOWN");            var str = "A, computer science, portal!";            el_up.innerHTML = str;                         function gfg_Run() {                 var arr = str.split(/[\s, ]+/)                el_down.innerHTML = arr;                }        </script>    </body></html>                   
Output:  
Before clicking on the button:  
After clicking on the button:  
Example 2: This example split the string by number of separators like Comma(, ), equal(=) and colon(:) using multiple .join() and .split() method.  
html
<!DOCTYPE html><html>    <head>        <title>            JavaScript | Split a string with            multiple separators.        </title>    </head>         <body style = "text-align:center;" id = "body">                 <h1 style = "color:green;" >            GeeksForGeeks        </h1>                 <p id = "GFG_UP" style = "font-size: 18px; font-weight: bold;">        </p>                  <button onclick = "gfg_Run()">            split        </button>                 <p id = "GFG_DOWN" style = "font-size: 25px; font-weight: bold;">        </p>                  <script>            var el_up = document.getElementById("GFG_UP");            var el_down = document.getElementById("GFG_DOWN");            var str = "A, computer=science:portal!";            el_up.innerHTML = str;                         function gfg_Run(){                var arr =                str.split('=').join(', ').split(':').join(', ').split(', ');                el_down.innerHTML = arr;                }                     </script>    </body></html>                   
Output:  
Before clicking on the button:  
After clicking on the button:  
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