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What are the best practices for JavaScript error handling?
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An immensely interesting set of slides on Enterprise JavaScript Error Handling can be found at http://www.devhands.com/2008/10/javascript-error-handling-and-general-best-practices/
In short it summarizes:
Assume your code will fail
Log errors to the server...
Why is my Git Submodule HEAD detached from master?
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EDIT:
See @Simba Answer for valid solution
submodule.<name>.update is what you want to change, see the docs - default checkout
submodule.<name>.branch specify remote branch to be tracked - default master
OLD ANSWER:
Personally I h...
What is the purpose of mock objects?
...s the cook returns the correct dish for each order.
Its harder to test a middle component, like the waiter, that utilizes the behavior of other components. A naive tester might test the waiter component the same way we tested the cook component:
cook <- waiter <- test driver
The test driv...
What exactly does the post method do?
...hich implements Runnable.
getView().post(new Runnable() {
@Override
public void run() {
getView().startAnimation(a);
}
});
code : getView().startAnimation(a);
in your code,
post causes the Runnable (the code will be run a in different thread) to ad...
How to use concerns in Rails 4
...cept. It has to do with code reuse as in the example below. Basically, the idea is to extract common and / or context specific chunks of code in order to clean up the models and avoid them getting too fat and messy.
As an example, I'll put one well known pattern, the taggable pattern:
# app/models...
Populate data table from data reader
...aTable directly from a data reader using the Load() method that accepts an IDataReader.
var dataReader = cmd.ExecuteReader();
var dataTable = new DataTable();
dataTable.Load(dataReader);
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Targeting position:sticky elements that are currently in a 'stuck' state
...n be made with many already existing pseudo-classes (e.g. :hover changing width and :not(:hover) changing back again). I would love :stuck pseudo-class and think that the developer should be responsible for not having the circular issues in his code.
– Marek Lisý
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Rails update_attributes without save?
.../active_record/attribute_assignment.rb
Another cheat sheet:
http://www.davidverhasselt.com/set-attributes-in-activerecord/#cheat-sheet
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Payment Processors - What do I need to know if I want to accept credit cards on my website? [closed]
...t. You may want to check with your bank, because a lot of major banks provide merchant services. You may be able to get deals, because you are already a customer of theirs, but if not, then you can shop around. If you plan on accepting Discover or American Express, those will be separate, because...
Override devise registrations controller
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If you override a Devise controller like this, make sure you copy all views from app/views/devise/registrations to app/views/registrations/ (change for whichever controller you're overriding).
– Jamie Cobbett
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