CanIUse Command Line
Every front-end developer should be well acquainted with CanIUse, the website that lets you view browser support for browser features. When people criticize my blog posts for not detailing browser support for features within the post, I tell them to check CanIUse: always up to date, unlike posts on any blog. While I know to use the CanIUse website, I recently found out that Sam Gentle has an accompanying Node.js CanIUse module for looking up browser support.
To install the utility, use a typical npm install command:
# Install globally for less hassle
npm install -g caniuse-cmd
With the caniuse command available, you can look up feature support from the command line:
The display of results is pretty and it provides a listing of different matching features if the lookup is vague. And because we can get this information in an automated way, you can probably write a decent scraper with cURL and other tools.
![Create Namespaced Classes with MooTools]()
MooTools has always gotten a bit of grief for not inherently using and standardizing namespaced-based JavaScript classes like the Dojo Toolkit does. Many developers create their classes as globals which is generally frowned up. I mostly disagree with that stance, but each to their own. In any event...
![9 Mind-Blowing Canvas Demos]()
The <canvas> element has been a revelation for the visual experts among our ranks. Canvas provides the means for incredible and efficient animations with the added bonus of no Flash; these developers can flash their awesome JavaScript skills instead. Here are nine unbelievable canvas demos that...
![Event Delegation with MooTools]()
Events play a huge role in JavaScript. I can't name one website I've created in the past two years that hasn't used JavaScript event handling on some level. Ask yourself: how often do I inject elements into the DOM and not add an...
![jQuery Link Nudging]()
A few weeks back I wrote an article about MooTools Link Nudging, which is essentially a classy, subtle link animation achieved by adding left padding on mouseover and removing it on mouseout. Here's how to do it using jQuery:
The jQuery JavaScript
It's important to keep...
I need to get this hooked up to be an email responder bot! “Hey Steve does
${browserX}support${featureY}?” => auto respond ;-)How about just adding canIuse as a search engine to your browser, like so http://caniuse.com/#search=%s?
Simply typing “c webp” into my browser gives me even nicer formatted results.
Sadly the output is not very useful for automated processing. It would’ve been nice if this could be implemented in a gulp-task, scanning CSS for a defined set of supported browsers, and if a css-declaration wasn’t supported it would throw an error.
But as your example of ‘transform’ shows, it returns things like JPEG2000, so output parsing is required and tedious. Plus it seems that there is no option to print a simple boolean instead of fancy ticks and crosses.
There’s also this package available via npm.
https://www.npmjs.com/package/caniuse-api
Perhaps this would work better for that task.
Definitely an interesting article about this new npm tool, useful for those who like command line better then gui.