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How do I check out a remote Git branch?
...for checkout with:
git branch -v -a
With the remote branches in hand, you now need to check out the branch you are interested in, giving you a local working copy:
git checkout -b test origin/test
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Set UILabel line spacing
...SAttributedString's old attributedStringWithString did the same thing, but now that is being deprecated.
For historical reasons, here's my original answer:
Short answer: you can't. To change the spacing between lines of text, you will have to subclass UILabel and roll your own drawTextInRect, crea...
Java Singleton and Synchronization
... case where you have two threads that call getInstance() at the same time. Now imagine T1 executes just past the instance == null check, and then T2 runs. At this point in time the instance is not created or set, so T2 will pass the check and create the instance. Now imagine that execution switches ...
Interface vs Abstract Class (general OO)
... seems they are waiting for me to mention something specific, and I don't know what it is.
35 Answers
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Why are C# 3.0 object initializer constructor parentheses optional?
... in this area. (The last thing we want to do is make a cheap, easy feature now that makes it much harder to implement a more compelling feature in the future.)
the feature adds no new ambiguities to the lexical, grammatical or semantic analysis of the language. It poses no problems for the sort of "...
this.setState isn't merging states as I would expect
...ability helpers were recently added to React.addons, so with that, you can now do something like:
var newState = React.addons.update(this.state, {
selected: {
name: { $set: 'Barfoo' }
}
});
this.setState(newState);
Immutability helpers documentation.
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What are the key differences between Apache Thrift, Google Protocol Buffers, MessagePack, ASN.1 and
...t about other libraries and how it's usable in common? Also, it seems Avro now has IDL with C-like syntax in addition to JSON one.
– andreypopp
Jan 8 '11 at 12:30
2
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How can I brew link a specific version?
...
Unfortunately, brew tap homebrew/versions now gives me an error Error: homebrew/versions was deprecated. This tap is now empty as all its formulae were migrated `
– Juraj Martinka
Jun 14 '19 at 11:57
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When should I release objects in -(void)viewDidUnload rather than in -dealloc?
...view
// Release anything that's not essential, such as cached data
}
Now, in the new OS 3.0, there is an -viewDidUnload method, which will be invoked from the system when the view has been unloaded because of low memory (please correct me: when exactly does this get called?)
-viewDidUnload is...
Logging in Scala
...ou can call info(...), debug(...), etc. I'm not a big fan of slf4j, but it now seems to be the predominant logging framework. Here's the description of SLF4J:
The Simple Logging Facade for Java or (SLF4J) serves as a simple facade or abstraction for various logging frameworks, e.g. java.util.log...