How to Flush or Erase Cache of Your XCode iOS or MacOS Cocoa App
If you're working with an XCode application, either iOS or MacOS, and want to do a completely clean build and delete the cache, it's simple.
Execute this command from the command line..
defaults delete your.apps.bundle.id
Where "your.apps.bundl...
Written by Sean Behan on 06/08/2018
Generate a Gravatar URL with Ruby
To get a Gravatar you need to hash an email address with the MD5 algorithm.
MD5 is a part of the Ruby standard library. Rails loads it by default, but otherwise you will have to require it yourself.
This is a simple implementation.
Gravatar su...
Written by Sean Behan on 04/11/2014
How to Calculate Age with PHP
Calculate age in PHP
$your_birthday = '1982-08-29';
$difference = date_diff(date_create(), date_create($your_birthday));
$age = $difference->format('%Y');
// 35
Short and sweet
Written by Sean Behan on 11/11/2017
How To Remove Duplicates From a Table with Postgres
Let's create a table that will hold some dummy data.
> create table fruits (id serial primary key, name varchar, color varchar);
> insert into fruits (name, color) values ('apple', 'red');
> insert into fruits (name, color) values ('ap...
Written by Sean Behan on 10/08/2013
A Regular Expression to Generate Dash Separated Slugs AKA Pretty URLs
This regular expression matches non alphanumeric characters in a string.
r = /[^a-z0-9]{1,}/i
You can use it to create URL friendly slugs.
slug = "hello world!".gsub(/[^a-z0-9]{1,}/i, '-').downcase # => hello-world
In combination wit...
Written by Sean Behan on 08/22/2013
