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How to check if a file exists in Documents folder?

...rchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES)[0]; NSString* foofile = [documentsPath stringByAppendingPathComponent:@"foo.html"]; BOOL fileExists = [[NSFileManager defaultManager] fileExistsAtPath:foofile]; ...
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jQuery ID starts with

...Mark Kahn 76.9k2525 gold badges153153 silver badges209209 bronze badges ...
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How to implement a property in an interface

... 301 In the interface, you specify the property: public interface IResourcePolicy { string Versi...
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LINQ Group By into a Dictionary Object

...is immutable. – Amit Nov 12 '14 at 20:15 1 My 2 Cents (just 'cause it kept me struggling for an h...
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How can I strip the whitespace from Pandas DataFrame headers?

...ethod should do what you want. In [5]: df Out[5]: Year Month Value 0 1 2 3 [1 rows x 3 columns] In [6]: df.rename(columns=lambda x: x.strip()) Out[6]: Year Month Value 0 1 2 3 [1 rows x 3 columns] Note: that this returns a DataFrame object and it's sho...
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How to check for file lock? [duplicate]

... answered Aug 4 '08 at 14:59 Lasse V. KarlsenLasse V. Karlsen 337k9191 gold badges560560 silver badges760760 bronze badges ...
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How to simulate a click by using x,y coordinates in JavaScript?

... answered Jul 18 '10 at 21:56 Andy EAndy E 300k7575 gold badges456456 silver badges436436 bronze badges ...
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Maven Install on Mac OS X

... 209 OS X prior to Mavericks (10.9) actually comes with Maven 3 built in. If you're on OS X Lion,...
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PHP memory profiling

... 10 Xdebug reimplemented memory tracing in 2.6 (2018-01-29) which can be used in Qcachegrind or simi...
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In Matlab, when is it optimal to use bsxfun?

... +500 There are three reasons I use bsxfun (documentation, blog link) bsxfun is faster than repmat (see below) bsxfun requires less typin...