For convenience, we assume you will use VSCode. If you are using WebStorm and Atom, you are likely to find some extensions that provide similar functionalities.
To install extensions in VS Code, navigate to the left-hand sidebar, and click the building blocks icon at the bottom. This should take you to the Extensions marketplace.
Once installed, add these lines to your VSCode Settings (refer to this link if you need help getting there or alternatively open the command palette in VSCode with CMD/CTRL + SHIFT + P and search
// Other settings ...
Bracket Pair Colorizer
Highlights matching brackets to make code easier to read.
This will be useful later when inspecting