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How does “this” keyword work within a function?
...st of mine, here's more than you ever wanted to know about this.
Before I start, here's the most important thing to keep in mind about Javascript, and to repeat to yourself when it doesn't make sense. Javascript does not have classes (ES6 class is syntactic sugar). If something looks like a class,...
Optimistic vs. Pessimistic locking
... different version to yours) you abort the transaction and the user can re-start it.
This strategy is most applicable to high-volume systems and three-tier architectures where you do not necessarily maintain a connection to the database for your session. In this situation the client cannot actuall...
Why would you use Expression rather than Func?
... db.Set<T>.Where(conditionLambda);
}
}
This worked great until I started getting OutofMemoryExceptions on larger datasets. Setting breakpoints inside the lambda made me realize that it was iterating through each row in my table one-by-one looking for matches to my lambda condition. This st...
Purpose of Django setting ‘SECRET_KEY’
...settings.SECRET_KEY).hexdigest() != tamper_check:
core/management/commands/startproject.py:32: # Create a random SECRET_KEY hash, and put it in the main settings.
core/management/commands/startproject.py:37: settings_contents = re.sub(r"(?<=SECRET_KEY = ')'", secret_key + "'", setti...
Best way to allow plugins for a PHP application
I am starting a new web application in PHP and this time around I want to create something that people can extend by using a plugin interface.
...
Pandoc markdown page break
Recently I started using Pandoc markdown which seems a good alternative to LaTeX, as my document does not have many mathematical formulas, and I do not have ANY experience with LaTeX, which combined with less than 2 week submission deadline makes it a good solution.
...
Does deleting a branch in git remove it from the history?
Coming from svn, just starting to become familiar with git.
3 Answers
3
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Assert a function/method was not called using Mock
..., so you may as well arrange for that information to be displayed from the start. Using unittest, you can check the contents of call_args_list instead:
self.assertItemsEqual(my_var.call_args_list, [])
When it fails, it gives a message like this:
AssertionError: Element counts were not equal:
Fi...
What techniques can be used to define a class in JavaScript, and what are their trade-offs?
...ype and jQuery.
Deciding which of these is the "best" is a great way to start a holy war on Stack Overflow. If you're embarking on a larger JavaScript-heavy project, it's definitely worth learning a popular library and doing it their way. I'm a Prototype guy, but Stack Overflow seems to lean to...
What are the risks of running 'sudo pip'?
...ge manager in case of installing/upgrading/uninstalling software. When you start to modify system's software with third party tools (pip in this instance) then you have no guarantee about the state of your system. Yet another reason is that sudo can bring you problems you wouldn't have a chance or h...