JavaScript Replace() method. Method to Replace value

In this blog post you’ll learn about the JavaScript replace() method. The method to replace the specified value with another value.

Description:

replace() method search in string for a specified value (with regular expression or normal value) and replace with another given value.

replace() method does not change original string.

Syntax:

JavaScript

text.replace(SearchValue, ValueToReplace);  

Parameter Description.

SearchValue: Value to search for replacement. (Required)

ValueToReplace: New Value to replace with given SearchValue . (Required).

Example 1: Replace specific word in string.

JavaScript

    let text = "Hello Good morning!. Welcome to maketechstuff.com";
    let replaced_text = text.replace("morning", "afternoon");
    document.write(replaced_text);
    // Output:
    // Hello Good afternoon!. Welcome to maketechstuff.com  

Given search value in regular expression.

JavaScript

    let text = "Hello Good morning!. Welcome to maketechstuff.com";
    let replaced_text = text.replace(/morning/g, "afternoon");
    document.write(replaced_text);
    // Output:
    // Hello Good afternoon!. Welcome to maketechstuff.com  

Case in-sensitive.

JavaScript

    let text = "Hello Good Morning!. Welcome to maketechstuff.com";
    let replaced_text = text.replace(/morning/gi, "afternoon");
    document.write(replaced_text);
    // Output:
    // Hello Good afternoon!. Welcome to maketechstuff.com  

So that is how the JavaScript replace() method works. If you have any query or suggestion feel free to write in the comment section.