The replace() method searches a string for a value or a regular expression. The replace() method returns a new string with the value(s) replaced. The replace() method does not change the original string.

Apr 3, 2025 · The replace() method of String values returns a new string with one, some, or all matches of a pattern replaced by a replacement. The pattern can be a string or a RegExp, and the replacement can be a string or a function called for each match. If pattern is a string, only the first occurrence will be replaced. The original string is left unchanged.

function replaceAll(str, find, replace) { var i = str.indexOf(find); if (i > -1){ str = str.replace(find, replace); i = i + replace.length; var st2 = str.substring(i); if(st2.indexOf(find) > -1){ str = str.substring(0,i) + replaceAll(st2, find, replace); } } return str; }

Jun 26, 2024 · Syntax: str.replace(value1, value2); Parameters: value1: is the regular expression that is to be replaced; value2: is a string that will replace the content of the given string. Return Values: It returns a new string with replaced items. Example 1: Below is an example of the string.replace() Method. javascript

In this tutorial, you'll how to use JavaScript String replace() function to replace a substring in a string with a new one.

Feb 18, 2022 · If you want to replace multiple characters you can call the String.prototype.replace() with the replacement argument being a function that gets called for each match. All you need is an object representing the …

Oct 20, 2020 · How to use RegEx with .replace in JavaScript. To use RegEx, the first argument of replace will be replaced with regex syntax, for example /regex/. This syntax serves as a pattern where any parts of the string that match it will be replaced …

The in-built function in JavaScript is the ".replace()" function. The syntax of the .replace() function is as follows: " <string_name>.replace('text to edit', 'text to replace it with' ); "

Feb 28, 2023 · In JavaScript, you can use the replace() method to replace a string or substring in a string. The replace() method returns a new string with the replacement. The replace() method takes two arguments: The first argument is the string or regular expression to be replaced.

The syntax of replace() is: str.replace(pattern, replacement) Here, str is a string.