JavaScript Crash Course 2023: Learn by Doing Exs & Projects.

What exactly is JavaScript?


JavaScript is a programming language that lets you create dynamically updated content, control multimedia, animate images, and do a variety of other things.


While JavaScript is a simple language, getting started with it can be difficult if you are unfamiliar with programming concepts. This crash course will teach you the fundamentals of JavaScript so you can begin creating your own dynamic web content.


In this JavaScript Crash Course, we’ll go over the fundamentals of the scripting language, from the fundamentals to more advanced topics.


JavaScript is a scripting language that is commonly used on the internet. It is a simple, interpreted language used to create dynamic, interactive web pages. JavaScript is simple to learn and can be used in  a variety of applications, from single pages to full applications.


We’ll cover topics such as:


• What is JavaScript?


• The basics of programming with JavaScript


• How to use JavaScript to create dynamic web content


• JavaScript best practices


By the end of this crash course, you’ll know how to use JavaScript to create dynamic web content. You will also be well on your way to becoming an accomplished JavaScript programmer.


JavaScript is one of the world’s most popular programming languages.


I believe it is an excellent choice for your first programming language.


To create, we primarily use JavaScript.


  • websites


  • web-based applications


  • Node.js server-side applications


However, JavaScript is not limited to these applications and can also be used to:


  • develop mobile applications with tools such as React Native


  • create micro-controller and internet of things programs


  • develop applications for smartwatches

It is capable of almost anything. It’s so popular that anything new that comes out will have some sort of JavaScript integration at some point.


JavaScript is a programming language that does the following:


  • high level: it provides abstractions that allow you to ignore details about the machine on which it runs. It manages memory automatically with a garbage collector, allowing you to focus on the code rather than memory management, as other languages such as C would require, and it includes many constructs that allow you to deal with highly powerful variables and objects.
  • In contrast to static programming languages, dynamic languages execute many of the things that static languages do at compile time at runtime. This has advantages and disadvantages, and it provides powerful features like dynamic typing, late binding, reflection, functional programming, object runtime alteration, closures and much more. Don’t worry if those things are unknown to you – you’ll know all of them by the end of the course.
  • A variable does not enforce a type when it is dynamically typed. You can reassign any type to a variable, such as assigning an integer to a string variable.


  • Loosely typed: Unlike strong typing, loosely (or weakly) typed languages do not enforce an object’s type, allowing for greater flexibility but denying us type safety and type checking (something that TypeScript – which builds on top of JavaScript – provides)


  • interpreted: It is commonly known as an interpreted language, which means that it does not require a compilation stage before a program can run, unlike C, Java, or Go. In practice, browsers compile JavaScript before executing it for performance reasons, but this is transparent to you – no additional step is required. involved.


  • multi-paradigm: The language does not impose any particular programming paradigm, unlike Java, which requires object-oriented programming, or C, which requires imperative programming. JavaScript can be written in an object-oriented paradigm, with prototypes and the new (as of ES6) classes syntax. JavaScript can be written in a functional programming style, with first-class functions, or even in an imperative style (C-like).

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