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Collapse sequences of white space into a single character and trim string
...iOS 3.2+
Use the native regexp solution provided by hfossli.
Otherwise
Either use your favorite regexp library or use the following Cocoa-native solution:
NSString *theString = @" Hello this is a long string! ";
NSCharacterSet *whitespaces = [NSCharacterSet whitespaceCharacte...
Accessing nested JavaScript objects and arays by string path
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I just made this based on some similar code I already had, it appears to work:
Object.byString = function(o, s) {
s = s.replace(/\[(\w+)\]/g, '.$1'); // convert indexes to properties
s = s.replace(/^\./, ''); // strip a leading dot
var a = s.split('.');
for...
How to sort a list of strings?
...ur original list (i.e. sorts in-place). To get a sorted copy of the list, without changing the original, use the sorted() function:
for x in sorted(mylist):
print x
However, the examples above are a bit naive, because they don't take locale into account, and perform a case-sensitive sorting. ...
How can I check if an argument is defined when starting/calling a batch file?
...or in the usage echo to escape the greater-than and less-than signs. In addition, the exit needs a /B argument otherwise CMD.exe will quit.
@echo off
if [%1]==[] goto usage
@echo This should not execute
@echo Done.
goto :eof
:usage
@echo Usage: %0 ^<EnvironmentName^>
exit /B 1
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Search for a string in Enum and return the Enum
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Don't forget you can have it ignore case sensitivity by passing in a third optional parameter to be "true"
– Aerophilic
Aug 7 '13 at 21:37
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Bootstrap with jQuery Validation Plugin
I am trying to add validation to my form with jQuery Validation Plugin, but I'm having a problem where the plugin puts the error messages when I'm using input groups.
...
What is NSZombie?
...g to set NSZombieEnabled to true while debugging. What is NSZombie? Is it a framework? A setting?
4 Answers
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How do I return to an older version of our code in Subversion?
I'm working on a project with a friend and I want to return to an older version of our code and set it to be the current. How do I do it?
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How do I restrict a float value to only two places after the decimal point in C?
...follow
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edited Aug 3 '14 at 20:44
answered Aug 27 '09 at 23:21
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What's the difference between an exclusive lock and a shared lock?
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I wrote this answer down because I thought this would be a fun (and fitting) analogy:
Think of a lockable object as a blackboard (lockable) in a class room containing a teacher (writer) and many students (readers).
While a teacher is writing something (exclusive lock) on the board:
Nobody ...