April 12, 2026 - 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 ...

The replace() method returns a new string with the value(s) replaced.

April 12, 2026 - The replaceAll() method of String values returns a new string with 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 to be called for each match. The original string is left unchanged.

The replace() method in JavaScript is a powerful tool for string manipulation.

Pattern is usually a string or regular expression. Technically it can be any object with a Symbol.replace method (like a RegExp). Replacement is either a string or function that returns a string.

November 7, 2024 - 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.

This JavaScript tutorial explains how to use the string method called replace() with syntax and examples. In JavaScript, replace() is a string method that is used to replace occurrences of a specified string or regular expression with a replacement string.

September 24, 2024 - let str = "Hello World, World!"; let result = str.replace(/world/gi, "JavaScript") // Output: "Hello JavaScript, JavaScript!"

November 4, 2024 - In this tutorial, you'll how to use JavaScript String replace() function to replace a substring in a string with a new one.

December 1, 2023 - To replace text in a JavaScript string the replace() function is used. The replace() function takes two arguments, the substring to be replaced and the new string that will take its place.

October 21, 2021 - Hi again 🙂 hope all is well, and I’ll get straight into it! I was looking at alternative solutions to a coding challenge I came across on codesignal and came across this solution: function reverseInParentheses(inputString) { while (inputString.includes('(')) { inputString = inputString.replace(/\(([^()]*)\)/, (_, str) => [...str].reverse().join('')); } return inputString; } now, whilst I understand in natural language terms, I don’t understand why they have t...

July 10, 2025 - If it's a string, it will replace the substring matched by the current regexp.

January 17, 2023 - JavaScript replace() Let's clear the concept of replace() and learn where we can use it. Let's get started! The replace() function is a method in JavaScript that is used to replace text in a string …

February 8, 2022 - The String.prototype.replace() method searches for the first occurrence of a string and replaces it with the specified string. It does this without mutating the original string. This method works for regular expressions, too, so the item you're ...

To perform the case-insensitive replacement, you need to use a regex with an i switch (case-insensitive search). const text = "javaSCRIPT JavaScript" // the first occurrence of javascript is replaced let pattern = /javascript/i; // case-insensitive search let new_text = text.replace(pattern, "JS"); console.log(new_text) // JS JavaScript // all occurrences of javascript is replaced pattern = /javascript/gi; // case-insensitive and global search new_text = text.replace(pattern, "JS"); console.log(new_text) // JS JS

The simplest and best way to replace multiple occurrences of a substring in a string is to use the replaceAll method.

June 26, 2024 - It allows you to search for a specific part of a string, called a substring, and then replace it with another substring.

August 31, 2024 - In this example, the global regular expression /hello/g matches all instances of ‘hello’, ensuring that every occurrence is replaced with ‘hi’. This is one of the most common ways to replace multiple occurrences of a substring in JavaScript.

The .replace() method is the most common way to replace strings in JavaScript. It takes two arguments: the string to replace (the "pattern") and the string to replace it with (the "replacement").