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iPhone - Grand Central Dispatch main thread
...h_queue_t backgroundQueue = dispatch_queue_create("com.mycompany.myqueue", 0);
dispatch_async(backgroundQueue, ^{
int result = <some really long calculation that takes seconds to complete>;
dispatch_async(dispatch_get_main_queue(), ^{
[self updateMyUIWithResul...
Cannot change column used in a foreign key constraint
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edited Aug 9 '17 at 20:53
Jacob Bond
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answered Nov 28 '12 at 13...
Java: How to set Precision for double value? [duplicate]
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See also my answer to this question for a refutation of the inevitable *100/100 answers.
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Viewing a Deleted File in Git
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answered Sep 8 '09 at 18:15
CB BaileyCB Bailey
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How do I parse a string into a number with Dart?
...sert(myInt is int);
print(myInt); // 12345
Note that int.parse() accepts 0x prefixed strings. Otherwise the input is treated as base-10.
You can parse a string into a double with double.parse(). For example:
var myDouble = double.parse('123.45');
assert(myDouble is double);
print(myDouble); // 1...
What exactly is Python's file.flush() doing?
...is a good thing, you should make both calls as instructed.
Addendum in 2018.
Note that disks with cache mechanisms is now much more common than back in 2013, so now there are even more levels of caching and buffers involved. I assume these buffers will be handled by the sync/flush calls as well,...
Java string to date conversion
What is the best way to convert a String in the format 'January 2, 2010' to a Date in Java?
15 Answers
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B-Tree vs Hash Table
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edited Jun 20 at 9:12
Community♦
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answered Sep 5 '11 at 9:58
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Where are static variables stored in C and C++?
... Tommy
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answered Sep 18 '08 at 15:07
Don NeufeldDon Neufeld
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