JavaScript Transpilers: What They Are And Why We Need Them | DigitalOcean
Introduction Transpilers, or source-to-source compilers, are tools that read source code written in one programming language and produce the equivalent code in another language. Languages you write that transpile to JavaScript are often called compile-to-JS languages, and are said to target JavaScript. Oh, and, even though people tend to use “compile[r]” and “transpile[r]” interchangeably, I’ll pr
JavaScript Modules: A Beginner’s Guide
By Preethi Kasireddy If you’re a newcomer to JavaScript, jargon like “module bundlers vs. module loaders,” “Webpack vs. Browserify” and “AMD vs. CommonJS” can quickly become overwhelming. The JavaScript module system may be intimidating, but understanding it is vital for web developers. In this post, I’ll unpack these buzzwords for you in plain English (and a few code samples). I hope you find it
How to Learn ES6
We ran a survey at about the time the standard became official in June 2015 to see how many people were using ES6. Nearly half of respondents already were. Because of the availability of transpilers and polyfills, the world adopted ES6 much faster than previous enhancements to the language specification. ES6 includes lots of great enhancements that will make you & your team more effective. If you
Must See JavaScript Dev Tools That Put Other Dev Tools to Shame
“JavaScript sucks for large apps because it can’t even identify the type of a variable, and it sucks for refactoring.” ~ lots of very confused people When I got into JavaScript, there was only one browser that mattered: NetScape. It dominated completely until Microsoft started shipping IE with the OS. In those days, the argument that JavaScript’s developer tools were weak was actually true. But it
Detecting CSS Animation and Transition End with JavaScript by Osvaldas Valutis
Detecting the end of CSS animation and transition could be useful if you want to back up some of your JavaScript behavior on CSS. The most common uses of this in my practice are: Animating the display: none. I used the technique on Readerrr for tabbed content and modal boxes: the new content or modal box shows up only after the old one disappears. And… Animating the disappearance of an element and
10 Tips for Writing JavaScript without jQuery
jQuery is a great library. It came to be around the time when IE6 was the number one browser. Back then, there were quirks and differences that were tedious to work around and jQuery was the perfect tool for writing cross browser code. Today, however, web browsers have advanced a great deal from those days. We can comfortably use all features provided by ES5, and we have at our disposal awesome HT
How to Build a Page Scroll Progress Indicator With jQuery and SVG | Envato Tuts+
Today we will be looking at a few techniques we can use to show scroll progress for users who are reading a page. This technique is being used on an increasing number of sites, and for good reason; it provides a contextual understanding of investment needed to consume a particular page. As the user scrolls, they are presented with a sense of current progress in different formats. As seen on ia.net
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Learn JavaScript with Eric Elliott is live now.