If you run into this error in development, using Rails 5 and Active Admin NoMethodError - undefined method `per_page_kaminari' Try the followin...

Here is a Regex for extracting URLs from text. However, these links will not already be hyperlinked or source attribtues from images or iframes. T...

I just wrote and published my first PHP package on Packagist.com. It's available on [packagist.org](https://packagist.org/packages/htmlxpath/htmlxpath...

Matching email addresses in Javascript regex = /\b[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4}\b/img "hello sean@example.com how are you? do...

Here are a few snippets for cross database queries. It's important to note that you must be explicit in enumerating the columns and types you are quer...

Here is a quick code snippet showing how to send email via SMTP with Postmark without any dependencies. It assumes you are using Heroku and have added...

There are a lot of practical uses for automating user behavior in a browser. Everything from testing your web application to logging into Twitter and...

Heroku is awesome! Let's say we want to copy a production database to a staging database. We can use the `pg:backups:restore` command to accomplis...

It's short and sweet! du -hs * If you run this command it will tell you the sizes of all the files and folder in the current directory. The...

This is how to reshape an array using Python without Numpy. This is a fairly simple task but it can be a little confusing to wrap your head around....

Creating trigrams in Python is very simple trigrams = lambda a: zip(a, a[1:], a[2:]) trigrams(('a', 'b', 'c', 'd', 'e', 'f')) # => [('a', 'b',...

When Heroku creates a dump file of your Postgres database it uses the `-Fc` option It is equivalent to running pg_dump -Fc -d name_of_db > nam...

I just got a new machine and downloaded XCode. I used git to clone my ReactNative project from Github. I have everything ready to go. But when I run `...

To decorate an imported function in Python you would do something like this # in ./lib.py def function_name(): # function body And then in...

Here is how to get the string representation of a method in Python def my_method_name(): print "Hello World" my_method_name.__name__ #...