How to Get a Base64 Version of a File From Command Line
A while back I wrote an article on how to Convert Image to Data URI with JavaScript. It's a neat trick developers can use for any number of reasons. Instead of abusing canvas, however, why not simply get the base64 data from command line?
You can use base64 and pbcopy to convert a file to base64 and copy it to the clipboard:
# base64 gets data, pbcopy copies to clipboard
base64 -i logo.jpeg | pbcopy
Once you have the file data copied in base64 format, the URL format to use the data is:
# data:{mime-type};base64,{data}
data:image/jpeg;base64,/9j/4AAQSkZJRgAB......
While base64 data and data URIs do look cryptic, they're useful to avoid making requests to other files. I use them when creating presentations or when I can't count on a decent internet connection.
![Regular Expressions for the Rest of Us]()
Sooner or later you'll run across a regular expression. With their cryptic syntax, confusing documentation and massive learning curve, most developers settle for copying and pasting them from StackOverflow and hoping they work. But what if you could decode regular expressions and harness their power? In...
![Responsive and Infinitely Scalable JS Animations]()
Back in late 2012 it was not easy to find open source projects using requestAnimationFrame() - this is the hook that allows Javascript code to synchronize with a web browser's native paint loop. Animations using this method can run at 60 fps and deliver fantastic...
![Digg-Style Dynamic Share Widget Using the Dojo Toolkit]()
I've always seen Digg as a very progressive website. Digg uses experimental, ajaxified methods for comments and mission-critical functions. One nice touch Digg has added to their website is their hover share widget. Here's how to implement that functionality on your site...
![Hot Effect: MooTools Drag Opacity]()
As you should already know, the best visual features of a website are usually held within the most subtle of details. One simple trick that usually makes a big different is the use of opacity and fading. Another awesome MooTools functionality is...
