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    Prototype-based Object-oriented – JavaScript is an object-oriented programming language. Objects are used to represent the real-world entity in the program. You’ve seen this stuff already in the course, but only in passing — here we’ll discuss it all explicitly. In this freeCodeCamp YouTube JavaScript Lessons course, you will learn about the basics of JavaScript including conditions, loops, functions, objects, arrays, and ES6. You will also build a blackjack game and Google Chrome extension. Learn modern JavaScript (ES2015+) from scratch, and practice in an intuitive environment.

    JavaScript Lessons

    It’s basically the same as while, except the condition is evaluated after the code block is executed. Another way to define strings is to use template literals, defined inside backticks. They are especially useful to make multiline strings much simpler. With single or double quotes you can’t define a multiline string easily – you’d need to use escaping characters. Any value that’s not of a primitive type (a string, a number, a boolean, null or undefined) is an object.

    Learn JavaScript – Full Course for Beginners

    There is a special method called constructor() that we can use to initialize the class properties when we create a new object instance. Comments are one of the most important parts of any program, in any programming language. They are important because they let us annotate the code and add important information that otherwise would not be available to other people (or ourselves) reading the code. JavaScript is one of the most popular programming languages in the world. This course is really recommended for beginners and for those who want to learn javascript language. You’ve learned the programming fundamentals using the latest JavaScript syntax to create dynamic web apps, but you want to do more!

    JavaScript Lessons

    Elements can be any kind of JavaScript value — even other arrays. Arrays are container-like values that can hold other values. Numbers are values that can be used in mathematical operations.

    JavaScript Tutorial for Beginners: Learn JavaScript in 1 Hour

    Object types have properties and also have methods that can act on those properties. My advice is to always use const and only use let when you know you’ll need to reassign a value to that variable. If we know a value cannot be reassigned, it’s one less source for bugs.

    • There is ample opportunity for students to practice these first, core skills.
    • Courses have been specifically play tested to preform well in the classroom, even with teachers with little to no prior programming experience.
    • In JavaScript, a boolean value is one that can either be TRUE or FALSE.
    • Object types have properties and also have methods that can act on those properties.

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