Often, Enumerable#select is the chosen method to obtain elements from an
Array for a given block. Without thinking twice, we may be doing more work than
necessary by not taking advantage of another method from the Enumerable module,
Enumerable#grep.
The other day my friend Juan Rossi reported a vulnerability in the Almundo billing system. Since then, the vulnerability has been fixed by Superfactura, their billing software provider.
Almundo is one of the biggest travel agencies in Argentina. Their site is among the 250 most visited websites in the country.
The vulnerability allowed anyone to download billing information about their clients by creating a pretty simple HTTP GET request. No programming knowledge required.
If you are using git in 2015, you are probably also using Github, unless you’re self-hosting or still betting on Bitbucket.
Below are some cool, useful tricks you can use on Github which can probably make your life easier:
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