freeCodeCamp/guide/english/certifications/javascript-algorithms-and-data-structures/regular-expressions/use-capture-groups-to-search-and-replace/index.md

title
Use Capture Groups to Search and Replace

Use Capture Groups to Search and Replace

Using .replace() with the first parameter set to find the part of the original string to replace, and the second parameter should be the replacement.

Hint 1:

Modify the regex so that fixRegex detects the part of the string to replace and the variable replaceText should be modified to the string that will replace fixRegex.

Spoiler Alert - Solution Ahead!

Solution

let huhText = "This sandwich is good.";
let fixRegex = /good/; // Change this line
let replaceText = "okey-dokey"; // Change this line
let result = huhText.replace(fixRegex, replaceText);