Get Node.js Command Line Arguments with yargs
Using command line arguments within Node.js apps is par for the course, especially when you're like me and you use JavaScript to code tasks (instead of bash scripts). Node.js provides process.argv but that doesn't provide a key: value object like you'd expect:
/*
$ node myscript.js --key1=value1 --key2=value2
[ 'node',
'/path/to/myscript.js',
'--key1=value1',
'--key2=value2' ]
*/
Bleh. If you want to work with a sane API for command line arguments, use yargs:
// Get the yargs resource
var yargs = require('yargs').argv;
// Check for arguments
if(yargs.someKey === expectedValue) {
// Do whatever
}
/*
yargs = {
key1: value1
key2: value2
};
*/
yargs provides a key:value object for arguments instead of the native process.argv mess. No hassle, no fuss, just access to command line arguments with a logical API. Happy noding!
![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 WebGL Demos]()
As much as developers now loathe Flash, we're still playing a bit of catch up to natively duplicate the animation capabilities that Adobe's old technology provided us. Of course we have canvas, an awesome technology, one which I highlighted 9 mind-blowing demos. Another technology available...
![HTML5 Datalist]()
One of the most used JavaScript widgets over the past decade has been the text box autocomplete widget. Every JavaScript framework has their own autocomplete widget and many of them have become quite advanced. Much like the placeholder attribute's introduction to markup, a frequently used...
![Unicode CSS Classes]()
CSS class name structure and consistency is really important; some developers camelcase classnames, others use dashes, and others use underscores. One thing I've learned when toying around by HTML and CSS class names is that you can actually use unicode symbols and icons as classnames.
[pirateAccent]Yaaaarrrrrg!![/pirateAccent]