About This Course

Why study this course?

In interviews, a JavaScript developer can be tested on various things such as:

• the general programming concepts of closure and scopes

• coding skills

• the ability to work with and mentor others

There is a wide range of possibilities of the questions asked during the interview, including questions about your past experiences with different technologies. The point of the technical interview is to assess your skills.

The interviewer will not waste time asking you about the language syntax if they want to hire a strong senior candidate that can help other junior developers. Instead, they will ask you questions about architecture, that is, those decisions that can have a significant impact on the whole project. They’ll also test how good you are at finding solutions to the problems that software developers can face, such as:

• rewriting code for repeated problems

• managing code in large teams

• organizing large chunks of code

This is where design patterns come in. Design patterns are the practices used by software developers to solve software development issues using a proven solution.

What is this course about?

Questions on different design patterns may be asked directly in an interview such as

• What are design patterns?

• What are the different categories of design patterns?

You’ll find these questions answered in this course. Similarly, questions on individual patterns can also be asked, such as Describe the factory pattern. However, the interviewer can also present you with a mock software design problem and ask you to solve it most efficiently. At this point, you will need to use your knowledge and understanding of the design patterns.

To adequately prepare you for the aspects mentioned above of an interview process, we have designed this course to discuss the different design patterns used by JavaScript developers to solve the common development problems. These include:

• Creational patterns

• Structural patterns

• Behavioral patterns

• Architectural patterns

Each pattern in the mentioned categories is explained in detail with the help of a coding example and illustrations. It is essential that you not only learn how to use a design pattern but also why and when it is used. Hence, the explanation of each pattern includes how, when, and why you should use it.

Moreover, each pattern is followed by a coding challenge to help you practice and its solution review. At the end of each chapter, you’ll find a quiz that will test your understanding of what you have learned in that chapter. The quiz will also help you understand the type of questions that can be asked in a JavaScript software developer’s technical interview.

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Who is this course designed for, and what are its prerequisites? Find it out in the next lesson.