You can use the following function to replace Character or String at a particular position of a String. To replace all the following match cases use String.prototype.replaceAllMatches() function.

Jul 7, 2015 · If you want to change certain characters, you can work with an array of characters: var myString = 'hello there!' myString = myString.split('') myString[1] = 'a' myString = myString.join('') console.log(myString) // 'hallo there!'

Jan 13, 2016 · Here is a simple utility function that will replace all old characters in some string str with the replacement character/string.

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 28, 2023 · To replace a character from a string there are popular methods available, the two most popular methods we are going to describe in this article. The first method is by using the substr() method. And in the second method, we will convert the string to an array and replace the character at the index. Both methods are described below:

Jun 3, 2024 · Given a String the task is to replace characters of String with a given String in JavaScript. Examples: strRepl = GfG. newStr = Geeks. In this approach, split (‘ ‘) is used to split the string into an array of words. Then, map () is used to iterate over each word in the array.

Mar 1, 2024 · To replace a character at a specific index in a string: Use the String.slice() method to get the part before the character. Use the String.slice() method to get the part after the character. Use the addition (+) operator to add the replacement between the two parts. string.slice(0, index) + . replacement + .

Mar 7, 2025 · Learn how to replace all instances of a character in a JavaScript string using methods like replaceAll(), replace(), and split().join().

Feb 2, 2024 · In this article, we are going to learn how to change specific character at specific index from given string values using multiple methods in JavaScript with different code examples.

You can use the JavaScript replace() method to replace the occurrence of any character in a string. However, the replace() will only replace the first occurrence of the specified character. To replace all the occurrence you can use the global (g) modifier.