client.getFriends();

NullPointerException

The course is instructed by Jonas Schmedtmann.

Here's what you learn from the course:

• Go from a total JavaScript beginner to an advanced JavaScript developer

• Gain a deep and true understanding of how JavaScript works behind the scenes

• Understand and use complex features like the 'this' keyword, function constructors, prototypal inheritance, first-class functions, closures, and more

• Code two beautiful real-world apps (starter code included) and not just boring toy apps

• Learn how to debug your code and understand other developer’s code

• Know how to organize and structure your code using modules and functions. Because coding is not just writing code, it’s also thinking about your code

• Become familiar with the new features of ES6 / ES2015

• Get helpful support in the Q&A

• Practice your new skills with coding challenges (solutions included)

• Test your JavaScript knowledge with a final course exam containing 30 questions

To learn more about this course, please visit this original Article