Welcome to Bucaro TecHelp!

Bucaro TecHelp
HTTPS Encryption not required because no account numbers or
personal information is ever requested or accepted by this site

About Bucaro TecHelp About BTH User Agreement User Agreement Privacy Policy Privacy Site Map Site Map Contact Bucaro TecHelp Contact RSS News Feeds News Feeds

JavaScript to Replace All Occurrences of a Substring Within a String

You have a string with multiple occurrences of a substring within and you want to replace every occurrence of that substring with a different substring. Two built-in string methods make this operation extremely easy.

string.split(substring)

The .split method splits a string into pieces at a substring that you specify and returns the substrings as an array.

array.join(separator)

The .join method joins all elements of an array separating each element of the array with a substring that you specify, and returns a single string.

string.split(substring).join(replacement)

You can combine the call to the .split method and .join method to perform the operation in a single statement.

<html>
<head>

<script>
document.write("Original String:<br /><br />");
var strOriginal = "The blooming, bloody spider went up the spider web. The blooming, bloody rain came down and washed the spider out. The blooming, bloody sun came out and dried up all the rain. And the blooming, bloody spider came up the web again.";
document.write(strOriginal);

document.write("<br /><br />Modified String:<br /><br />");
var strModified = strOriginal.split("blooming, bloody").join("itsy bitsy");
document.write(strModified);

</script>

</head>
<body>

</body>
</html>

The example code above takes the string "The blooming, bloody spider went up the spider web. The blooming, bloody rain came down and washed the spider out. The blooming, bloody sun came out and dried up all the rain. And the blooming, bloody spider came up the web again." and replaces the substrings "blooming, bloody" within it with "itsy bitsy".

More Java Script Code:
• JavaScript Code to Save and Load a Table Using HTML5 Web Storage
• Let Your Web site Visitors Set Font Size
• Code for Java Script Cube / Box Volume Calculator
• Java Script Code to Move Items Between Select Lists
• Easy JavaScript Form Design
• Submit Forms Without CGI
• Easy Slide Show Code with Mouseover Pause
• Java Script Code to Factor Numbers
• Code to Add Music to Your Webpage
• Date Picker For Your Web Site

RSS Feed RSS Feed

Follow Stephen Bucaro Follow @Stephen Bucaro



Fire HD
[Site User Agreement] [Privacy Policy] [Site map] [Search This Site] [Contact Form]
Copyright©2001-2018 Bucaro TecHelp 13771 N Fountain Hills Blvd Suite 114-248 Fountain Hills, AZ 85268