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Can you make just part of a regex case-insensitive?
...ase-insensitive by using the (?i:) pattern modifier.
Modern regex flavors allow you to apply modifiers to only part of the regular expression. If you insert the modifier (?ism) in the middle of the regex, the modifier only applies to the part of the regex to the right of the modifier. You can turn ...
How does git store files?
...d CVS store the difference between files and that git stores a snapshot of all the files.
2 Answers
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Why isn't there a Guid.IsNullOrEmpty() method
...why Guid in .NET does not have IsNullOrEmpty() method (where empty means all zeros)
6 Answers
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Would it be beneficial to begin using instancetype instead of id?
...stancetype that, as far as I can see, replaces id as a return type in -alloc and init .
4 Answers
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Javascript checkbox onChange
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Here's a JsFiddle where all the different ways can be tested: click, keyboard, label and accesskey. They all trigger the event in Firefox.
– Roman Starkov
May 8 '15 at 12:59
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When should I make explicit use of the `this` pointer?
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Usually, you do not have to, this-> is implied.
Sometimes, there is a name ambiguity, where it can be used to disambiguate class members and local variables. However, here is a completely different case where this-> is e...
Remove the bottom divider of an android ListView
... This seems to no longer work starting with 4.4.2. I can run literally the same app across my many test devices (ranging from 2.3.7 all the way up until 4.4.2) and KitKat is the only one where this seems to have no effect... Any ideas? I'm not adding a footer or header to my ListView and I'...
Redis key naming conventions?
...to".
Are you able to query for just the beginning of the key to return all
users?
If you mean someting like directly querying for all keys which starts with user: there is a keys command for that. This command should be however used only for debugging purpose since it's O(N) because it's sea...
SQLAlchemy: What's the difference between flush() and commit()?
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A Session object is basically an ongoing transaction of changes to a database (update, insert, delete). These operations aren't persisted to the database until they are committed (if your program aborts for some reason in mid-session transaction, any...
How to remove padding around buttons in Android?
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I don't think this answer actually answers the original question at all. But I'm still glad I came across it because I couldn't figure out why my Button was still taking up so much space even after setting its android:background="@null". The fact that the...