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Is it safe to assume a GUID will always be unique?
...ow there is a minute possibility of a clash but if I generated a batch of 1000 GUIDs (for example), would it be safe to assume they're all unique to save testing each one?
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How to make an image center (vertically & horizontally) inside a bigger div [duplicate]
I have a div 200 x 200 px. I want to place a 50 x 50 px image right in the middle of the div.
36 Answers
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return statement vs exit() in main()
...g exit over return.
http://groups.google.com/group/gnu.gcc.help/msg/8348c50030cfd15a
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indexOf method in an object array?
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1096
I think you can solve it in one line using the map function:
pos = myArray.map(function(e) { ...
How to validate a url in Python? (Malformed or not)
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10 Answers
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How to detect total available/free disk space on the iPhone/iPad device?
...n working for me:
-(uint64_t)getFreeDiskspace {
uint64_t totalSpace = 0;
uint64_t totalFreeSpace = 0;
NSError *error = nil;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSDictionary *dictionary = [[NSFileManager defaultMan...
How to write a CSS hack for IE 11? [duplicate]
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301
Use a combination of Microsoft specific CSS rules to filter IE11:
<!doctype html>
<ht...
How do I set the time zone of MySQL?
... MySQL:
In the file "my.cnf" in the [mysqld] section
default-time-zone='+00:00'
@@global.time_zone variable
To see what value they are set to:
SELECT @@global.time_zone;
To set a value for it use either one:
SET GLOBAL time_zone = '+8:00';
SET GLOBAL time_zone = 'Europe/Helsinki';
SET @@glo...
Difference between string and char[] types in C++
...text's length, the array has to be scanned, character by character, for a \0 character.
A string is a class that contains a char array, but automatically manages it for you. Most string implementations have a built-in array of 16 characters (so short strings don't fragment the heap) and use the he...
How do I find out my MySQL URL, host, port and username?
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