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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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Convert JSON to Map
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I hope you were joking about writing your own parser. :-)
For such a simple mapping, most tools from http://json.org (section java) would work.
For one of them (Jackson https://github.com/FasterXML/jackson-databind/#5-minute-tutorial-streaming-parser-gener...
How do I skip an iteration of a `foreach` loop?
In Perl I can skip a foreach (or any loop) iteration with a next; command.
8 Answers
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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...
Reusing a PreparedStatement multiple times
in the case of using PreparedStatement with a single common connection without any pool, can I recreate an instance for every dml/sql operation mantaining the power of prepared statements?
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How to make phpstorm display line numbers by default?
...ake phpstorm display line numbers by default?
Couldn't find that option. It's kind of annoying to turn them on manually for each page.
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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 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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Multiple variables in a 'with' statement?
Is it possible to declare more than one variable using a with statement in Python?
6 Answers
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