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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