The following is a short extract from our new book, JavaScript: Novice to Ninja, 2nd Edition, written by Darren Jones. It’s the ultimate beginner’s guide to JavaScript. SitePoint Premium members get access with their membership, or you can buy a copy in stores worldwide. It is a tradition when learning pro...
A lot of people try to learn JavaScript and then give up. Then they tell themselves things like, “JavaScript is too confusing,” or worse, “Maybe I’m not cut out for web development.” The sad part? There was no need to give up. All that was needed was a different learning approach. In this ...
This article includes a list of ten interesting languages that can compile to JavaScript to be executed in the browser or on a platform like Node.js. Modern applications have different requirements from simple websites. But the browser is a platform with a (mostly) fixed set of technologies available, and JavaScript re...
In JavaScript, there is a problem that comes up often. You need a way to update parts of a page in response to certain events, with the data these provide. Say, for example, user input that you then project into one or many components. This leads into a lot of push-and-pull in the code to keep everything in sync. This ...
HTML5 introduces a couple of new attributes for implementing browser-based form validation. The pattern attribute is a regular-expression that defines the range of valid inputs for textarea elements and most types of input. The required attribute specifies whether a field is required. For legacy browsers that don’...
When jQuery was released, one of the main reasons behind its meteoric rise to popularity was the ease with which it could select DOM elements, traverse them and modify their content. But that was way back in 2006. In those days we were stuck with Internet Explorer 7 and ECMAScript 5 was still a couple of years off.Lu...
Design patterns often get incorporated into popular frameworks. The Model-View-Controller (MVC) design pattern, for example, is one that is ubiquitous. In JavaScript, it is hard to decouple the framework from the design pattern. Oftentimes, a particular framework will come with its own interpretation of this design pat...
When learning JavaScript, it doesn’t take long until you encounter callbacks. These might seem strange and mysterious to beginners, yet it is very important to understand how they work in order to harness the power of the language. In this article I will teach you the basics of callbacks using easy-to-understand ...
Event bubbling is a term you might have come across on your JavaScript travels. It relates to the order in which event handlers are called when one element is nested inside a second element, and both elements have registered a listener for the same event (a click, for example). But event bubbling is only one piece of t...
“How do I make a JavaScript quiz?” — this is one of the most common questions I hear from people who are learning web development, and for good reason. Quizzes are fun! They are a great way of learning about new subjects and allow you to engage your audience in a fun, yet playful manner.And coding your ...
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