ruby

Returns a random key from your hash, but won't repeat until it's done every one.

A very simple way to add assert capability to function.

Ses Marcel Molina's AWS::S3 gem.. gem install aws-s3.

This method will return the inverse of a hex color,

The options.delete with the default looks mildly interesting.

A screen scraping library to access the US Securities.

To encode the web parameters for a URL query string.

I didn't write this, I'm just posting it in case someone else finds it useful.

Example lifted from the standard library docs. Illustrative!

Here's something I wrote this evening. It's a simple and fast XML builder.