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Matching a space in regex
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If you're looking for a space, that would be " " (one space).
If you're looking for one or more, it's " *" (that's two spaces and an asterisk) or " +" (one space and a plus).
If you're looking for common spacing, use "[ X]" or "[ X][ X...
How to concatenate strings in django templates?
I want to concatenate a string in a Django template tag, like:
12 Answers
12
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Define: What is a HashSet?
HashSet
The C# HashSet data structure was introduced in the .NET Framework 3.5. A full list of the implemented members can be found at the HashSet MSDN page.
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Emacs in Windows
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I use EmacsW32, it works great. EDIT: I now use regular GNU Emacs 24, see below.
See its EmacsWiki page for details.
To me, the biggest advantage is that:
it has a version of emacsclient that starts the Emacs server if no server is running (op...
How to Validate a DateTime in C#?
... Sep 24 '18 at 20:15
Stuart Frankish
60666 silver badges2424 bronze badges
answered Dec 16 '08 at 17:18
quiqui...
Can I use CoffeeScript instead of JS for node.js?
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Yes, CoffeeScript simply compiles into pure JS, making it completely compatible with node.js.
To run CoffeeScripts on node, you can either:
Type coffee -c example.coffee to compile, followed by node example.js to run the compiled JS.
Simply type coffee example.coffee
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What is the difference between “git branch” and “git checkout -b”?
I used git checkout -b to create a new branch. I think that git branch does the same thing.
How do these two commands differ, if they differ at all?
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Generate JSON string from NSDictionary in iOS
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Here are categories for NSArray and NSDictionary to make this super-easy. I've added an option for pretty-print (newlines and tabs to make easier to read).
@interface NSDictionary (BVJSONString)
-(NSString*) bv_jsonStringWithPrettyPrint:(BOOL) prettyPrint;
@end
.
@implementa...
How to turn NaN from parseInt into 0 for an empty string?
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isherwood
42.9k1414 gold badges9494 silver badges122122 bronze badges
answered Jul 18 '11 at 17:02
MatthewMatthew
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How do I check if a given string is a legal/valid file name under Windows?
... pattern and (after replacing some wildcards in the pattern) I need to check if it's going to be a legal filename under Windows. I've tried to use regular expression like [a-zA-Z0-9_]+ but it doesn't include many national-specific characters from various languages (e.g. umlauts and so on). What is...