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What is the difference between \r and \n?
... Mac, but I'm not sure exactly how they're different, and which to search for/match in regexes.
9 Answers
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How to initialize a two-dimensional array in Python?
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A pattern that often came up in Python was
bar = []
for item in some_iterable:
bar.append(SOME EXPRESSION)
which helped motivate the introduction of list comprehensions, which convert that snippet to
bar = [SOME EXPRESSION for item in some_iterable]
which is shorter an...
UILabel is not auto-shrinking text to fit label size
I have this strange issue, and im dealing with it for more than 8 hours now.. Depending on situation i have to calculate UILabels size dynamically,
e.g my UIViewController receives an event and i change UILabels size. from bigger to smaller. The size of my UILabel gets smaller and i ge...
What are unit tests, integration tests, smoke tests, and regression tests?
...n tests? What are the differences between them and which tools can I use for each of them?
17 Answers
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Converting Secret Key into a String and Vice Versa
I am generating a key and need to store it in DB, so I convert it into a String, but to get back the key from the String. What are the possible ways of accomplishing this?
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Domain Driven Design: Domain Service, Application Service
...s service within the domain assembly and if so, would I also inject repositories into that domain service? Some info would be really helpful.
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How to use gitignore command in git
I'm working first time on git. I have pushed my branch on github and it pushed all the library and documents into the github. Now what can I do and how can I use gitignore command to avoid the same mistake again.
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Difference between Destroy and Delete
...llbacks on the model while delete doesn't.
From the Rails API:
ActiveRecord::Persistence.delete
Deletes the record in the database and freezes this instance to reflect that no changes should be made (since they can't be persisted). Returns the frozen instance.
The row is simply removed w...
Why do you use typedef when declaring an enum in C++?
... it like so:
TokenType my_type;
If you use the second style, you'll be forced to declare your variable like this:
enum TokenType my_type;
As mentioned by others, this doesn't make a difference in C++. My guess is that either the person who wrote this is a C programmer at heart, or you're compi...
Cache Invalidation — Is there a General Solution?
...gh then you either:
accept that you sometime operate with out of date information and do not always check b
do your level best to make checking b as fast as possible
You cannot have your cake and eat it...
If you can layer an additional cache based on a over the top then this affects the initia...