Learn about various JavaScript tags, operators, arrays, how to create objects and elements in this free online course.

It’s widely reported that of the nearly-2 billion websites in the world, 95% of them use JavaScript. JavaScript’s versatility on both the client-side and server-side allows you to create interactive web pages and this free online Fundamentals of JavaScript course provides a comprehensive guide to using this text-based programming language. You will learn all about Javascript tags; how to create and implement them as well how boxes are created and the uses of the three different kinds of dialogue boxes. This Javascript tutorial then explains how consoles work and how they are used to log information as part of the JavaScript development process, as well as allow you to interact with a web page by carrying out JavaScript expressions within the page's context. Variables and operators are also covered along with how code commenting works.

In the next part of this free online course, you will study arrays, array data types in JavaScript and how to add items to an array - this also includes learning about array prototype and how to loop over an array. Objects in Javascript follows your study on arrays and you’ll comprehensively analyze how objects are designed on a simple object-based paradigm, created and defined, and how the interval method executes a specified function multiple times at a set time interval. Specific objects such as date and time, creating and clearing intervals and how to implement callbacks completes this section of your studies. The final part of the content details some more advanced aspects of Javascript. You will learn how to create Document Object Model (DOM) elements, and how to add and remove elements within JavaScript code. Query selectors are explained and you will be able to distinguish between query selectors and query selectorAll, event handlers and how they are used to prompt messages, the methods used to set event handlers. 

JavaScript is a critical part of modern programming and learning these skills can open many doors for you and your career. If you are new to coding and are curious about the fundamental functions of JavaScript or do have coding experience but have not expanded your knowledge to include JavaScript, then enrol today.