Replace specific character in a String in JavaScript

In this tutorial, you replace all occurrences of a specific character in a string using JavaScript.

Solution

To replace all occurrences of a specific character in a string, call replace() method on the string, specify the search character as regular expression with global search option as first argument, and the replacement character as second argument.

myStr.replace(/searchCharacter/g, replacementCharacter)

Program

1. Given a string value in str. Replace character "o" at all occurrences with "m" in str.

str = "hello world";
output = str.replace(/o/g, "m");
console.log(output);