It is advisable to refresh JavaScript Basics Before we get started with WebDriverIO Automation,

I have covered JS Basics from scratch in the next 2 sections ( Section 2, 3).

If you are beginner I would suggest you to watch the lectures in sequence to learn JS Programming basics and continue with WebDriverIO in sequence how lectures are arranged.

If you are already aware of JS Basics, Feel free to skip these Sections (2, 3) and jump directly to Section 4 with WebDriverIO Automation