The Future of AngularJS
Presentation about awesome changes we can look forward to.
Related cards:
AngularJS: How to hook to the end of a digest cycle (before the browser redraws)
When you run code inside a $watch expression that forces a repaint (e.g. by computing an element's width, or running something like...
The nitty-gritty of compile and link functions inside AngularJS 1 directives
Use the compile function to change the original DOM (template element) before AngularJS creates an instance of it and before a scope is created.
Use the pre-link function to implement logic that runs when AngularJS has already compiled the ch...
Security issues with hash conditions in Rails 2 and Rails 3
Find conditions for scopes can be given either as an array (:conditions => ['state = ?', 'draft']) or a hash (:conditions => { 'state' => 'draft' }). The later is nicer to read, but has horrible security implications in some versions of Ru...
RSpec: Change the type of a spec regardless of the folder it lives in
In a Rails application, *_spec.rb files get special treatment depending on the file's directory. E.g. when you put a spec in spec/controllers your examples will have some magic context like controller, post or get that appears out of now...
Ruby, Ruby on Rails, and _why: The disappearance of one of the world’s most beloved computer programmers
Nice article to educate your non-geek girlfriend/boyfriend about the joys of programming.
Heads up: expect(object).to receive(:method_name) does not execute the original implementation of the method
Let's assume that we have a model Movie that registers a callback function when a new instance of Movie is created (Note: For the purpose of this card it is not important what that callback does or which type of callback it is).
This is how...
Duels of the Planeswalkers: The Magic Engine : Daily MTG : Magic: The Gathering
For instance, the UI finds that a certain card is in the graveyard. It is essential that the UI sub-system does not care why the card is there, or how it got there. It is entirely a dumb client.
Show the character set and the collation of your MySQL tables
To show the collation of your tables you have to login to the MySQL console and execute SHOW TABLE STATUS FROM database;
mysql> SHOW TABLE STATUS FROM test;
+-------------+--------+---------+------------+------+----------------+--------...
ActiveRecord::RecordNotFound errors allow you to query the :name and :id of the model that could not be found
ActiveRecord::RecordNotFound errors provide quite meaningful error messages that can provide some insight on application details. Consider the following:
ActiveRecord::RecordNotFound: Couldn't find Organisation::Membership with 'id'=12 [WHE...
How to get the hostname of the current machine in Rails or a Ruby script
Use Socket.gethostname. So for a machine whose hostname is "happycat", it will look like this:
>> Socket.gethostname
=> "happycat"
That should work right away for your Rails application. For plain Ruby, you first need to do:
requi...