The usage of a proper code editor is key to every development project.

Atom

Atom is a simple and straight-forward editor that excels though its ability to be extend with many packages.
A short tutorial on the various functionalities can be found here.
An older video from LearnCode.academy is available here.

WebStorm

Certain projects need bigger tools like WebStorm that provide more professional functionalities.
There is a tutorial on the usage here and a couple of vides located here.

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Other Editors