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How do I wait for an asynchronously dispatched block to finish?
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Trying to use a dispatch_semaphore. It should look something like this:
dispatch_semaphore_t sema = dispatch_semaphore_create(0);
[object runSomeLongOperationAndDo:^{
STAssert…
dispatch_semaphore_signal(sema);
}];
if (![NSThread isMainThread]...
Java: What is the difference between and ?
...to understand the following text... Does it mean that <clinit> is for empty constructors? Why is important to have two different versions?
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How to make Git pull use rebase by default for all my repositories?
Is there a way to setup the host Git repository such that any git pull done from its (local) clones uses --rebase by default? By searching on Stack Overflow, I learned about branch.autosetuprebase , but it needs to be configured per clone individually.
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Sending an HTTP POST request on iOS
...response (from the urlconnection). I never get a response from the server nor does the server detect my posts (the server does detect posts coming from android)
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How do you Force Garbage Collection from the Shell?
So I am looking at a heap with jmap on a remote box and I want to force garbage collection on it. How do you do this without popping into jvisualvm or jconsole and friends?
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Combining two Series into a DataFrame in pandas
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index s1 s2
0 A 1 3
1 B 2 4
Note: This extends to more than 2 Series.
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Aligning UIToolBar items
...multiple flexible space object to your toolbar multiple times if you need more than one.
– mmc
Jul 20 '09 at 13:15
mmc...
Scala: Nil vs List()
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374527572
scala> System.identityHashCode(List())
374527572
Nil is more idiomatic and can be preferred in most cases.
Questions?
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Renaming a branch while on pull request
...h that, if the request is accepted, will be merged into the master branch (or an analogous one) of the project.
2 Answers
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execJs: 'Could not find a JavaScript runtime' but execjs AND therubyracer are in Gemfile
I'm getting this error:
18 Answers
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