illustration for Understanding JavaScript's Prototypal Inheritance

Understanding JavaScript's Prototypal Inheritance

Instructor

Tyler Clark
27m closed-captioning
Updated 3 weeks ago
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4.3
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How do inherent prototypes work?

You might not think this question applies to you, especially if you come from a classical background. But if you use objects, functions, or arrays, you're probably already using prototypes, and can benefit from learning the logic behind them.

This course explores the mechanics of inheritance in JavaScript by showing how prototypes work as chained references to other objects. Learn to take full advantage of prototype shortcuts to make your work simpler and faster…and debug them if you hit a snag.

We’ll explore:

  • how to manipulate prototypes to work like traditional classes
  • how polymorphism and factory functions can be used within JavaScript
  • how the class, new, and this keyword work and how to use them
  • using the instanceof, Object.create, and Object.getPrototypeOf functions to explain why objects have the properties that they do

Develop the knowledge needed to use inheritance for faster, better, bug-free code.

Learner Reviews

  • Kevin Barnoin
    a month ago
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    How will you use what you learned from this course?

    a lot of important concept are presented and discussed which are very interesting, but there is a lot of scrolling in the videos, sometimes it's hard to follow.

  • Radu Stefan
    3 months ago
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    What did you like about this course?

    amazing course, hard to totally understand it all, I need to go through the course a few times, and practice it, but I went once and it's really cool, thanks for creating it.

  • Dejan Kostevski
    3 months ago
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    What did you like about this course?

    I love your tutorials. I like the in-depth and behind the code explanations. I always learn something new, even on the topics I consider to have a good knowledge of. Thank you.

  • Brendan
    3 months ago
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    What would make this course a 7 for you?

    Solid theory - not entirely sure how I'm going to apply what I've learned, but that's maybe a product of my work environment / skill level vs. the quality of this course.

    The examples were fine, but again, not sure how it relates to something I'd actually build. Great explanations all the same!

  • Pavel Klochkov
    3 months ago
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    What did you like about this course?

    Thanks, good explanation of the tricky topic.

  • Martin Lecke
    9 months ago
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    What did you like about this course?

    Very good, the pace is spot on and very well described

Course Content

27m • 13 lessons

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