illustration for Understand JavaScript's this Keyword in Depth

Understand JavaScript's this Keyword in Depth


Marius Schulz

18m closed-captioning
8 lessons
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Published 7 years ago
Updated 3 years ago

JavaScript’s this keyword is a source of confusion for new and experienced developers alike. It can be frustrating if, for some reason, this doesn’t point to the context that was intended.

This course will help you understand JavaScript’s this mechanism in-depth. Marius will take us through all of the ways this will change its values, from why many libraries use "use strict" to how arrow functions take its outer execution context’s this.

Over 8 lessons, you’ll learn:

  • how JavaScript implicitly sets the this context, and how we can set it ourselves
  • that the call-site of a function determines the this value of that function invocation
  • how to call a function with a specific this value
  • how to create functions that always remain tied to a specific this context
  • how this is treated within arrow functions and classes

Following the course, this will feel less frustrating, more intuitive, and far more useful in your day-to-day.

Course Content

18m • 8 lessons

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