About The Author

Ayo Isaiah is a Software Developer with a keen interest in Web Technologies, Security and Performance. He enjoys Sports, Books and Tech. You can learn more … More about Ayo

• November 5, 2018
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Animated GIFs are popular on the web for good reason. They provide more engagement than an ordinary image, while remaining more digestible compared to a typical video. However GIFs are a terrible format for storing video and are often huge in size leading to slow page load times and high data usage. With HTML5 video, you can reduce the size of GIF content by up to 98% while still retaining the unique qualities of the GIF format in the browser.

Animations are very important to create a great user experience. Stationary objects must overcome inertia as they start moving. Objects in motion have momentum and rarely come to a stop immediately. Animations allow you to convey physically believable motion in your interface.

React Native provides two complementary animation systems: Animated for granular and interactive control of specific values, and LayoutAnimation for animated global layout transactions.

The Animated API is designed to make it very easy to concisely express a wide variety of interesting animation and interaction patterns in a very performant way.

About The Author

Nick Babich is a developer, tech enthusiast, and UX lover. He has spent the last 10 years working in the software industry with a specialized focus on … More about Nick…

• October 9, 2018
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Good functional animation makes a landing page not just more appealing, but also more usable. When done correctly, animation can turn a landing page from a sequence of sections into a carefully choreographed, memorable experience. Meet Slides, a framework that will help you use animation to communicate clearly.

Creating ASCII art for your terminal isn’t new. Displaying animating ASCII GIFs in the CLI (command line interface), however, hasn’t been possible, or at least, not easy to do -- until now.

Shortly after Tenor was acquired by Google, I had an idea.

Many developers configure static

to appear when opening a terminal, but I imagined that ASCII art could animate like a GIF, and could easily be created from any GIF on Tenor.

After some tinkering, GIF for CLI was born.

Just in time for the

, GIF for CLI is available today on

. GIF for CLI takes in a GIF, short video, or a query to the

and converts it to animated ASCII art. This means each time you log on to your programming workstation, your GIF is there to greet you in ASCII form. Animation and color support are performed using ANSI escape sequences.

• GIFs are awesome but terrible for quality and performance
• Replacing GIFs with <video> is better but has perf. drawbacks: not preloaded, uses range requests
• Now you can <img src=".mp4">s in Safari Technology Preview
• Early results show mp4s in <img> tags display 20x faster and decode 7x faster than the GIF equivalent – in addition to being 1/14th the file size!
• Background CSS video & Responsive Video can now be a “thing”.
• Finally cinemagraphs without the downsides of GIFs!
• Now we wait for the other browsers to catch-up: This post is 46MB on Chrome but 2MB in Safari TP

Special thanks to: Eric Portis

New image formats like WEP and MOZJPEG will be a major boost to load time on the web. The majority of page load and render time is usually attributed to unoptimized images, so these new formats will make both mobile and desktop load times faster. I've taught you how to detect WEBP support but we've not explored how to create WEBP images; let's have a look at how easy it is to convert JPG, PNG, and even animated GIF to WEBP.

My favorite open source image manipulation library, ImageMagick, doesn't have the capability to convert images to WEBP out of the box -- you'll receive an ugly error if you don't first install webp via a utility like homebrew:

I've been reading David Walsh's blog for years. The tips and tutorials he shares have helped me fix a lot of problems. I love that I get to support him now by advertising TrackJS on his site. Plus, I get a chance to build some cool SVG animations!

I'm not a designer or a marketer by trade. I'm a software developer, but as an entrepreneur I end up doing a bit of everything. I spent a lot of time sketching and googling to figure out how this works. I'd like to share what I've learned about designing and building animated SVG ads, like this one right here:

If you’re a front-end dev like me, you’ll often find yourself making pull requests that have visual changes. I wanted to share something that I’ve started doing at work that has been helpful in getting my pull requests approved.

The idea is simple, but I will add a few tips and tricks to help you take it to the next level!

The basic idea is to add screenshots and screen recordings for any visual changes. They make the job for the reviewers much easier since they can visually see what’s been changed instantly.

I like to show the before and after visual diffs.

Take a screenshot of the before and after, and add it to your PR like so: