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Regular Expression to match only alphabetic characters
... expression which will match a string that only has alphabetic characters, and that alone.
5 Answers
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How to identify whether a file is normal file or directory
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os.path.isdir() and os.path.isfile() should give you what you want. See:
http://docs.python.org/library/os.path.html
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Add zero-padding to a string
...for zero filling a string number such as "1.20". I can do this to truncate and fill a simple string number < 10000. num = num.length > 4 ? num.Substring(0,4) : num.PadRight(4,'0');
– Dan Randolph
Apr 14 '17 at 17:59
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Understanding keystore, certificates and alias
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The keystore file generated by Keytool stores pairs of private and public keys. Each pair or entry stored in the keystore is refered by a unique alias. In brief:
Keystore entry = private + public key
pair = identified by an alias
The keystore protects each private key with its in...
When editing Microsoft Office VBA, how can I disable the popup “Compile error” messages?
...titled "Microsoft Visual Basic for Applications"):
Click the menu "Tools" and then "Options".
In the Options' "Editor" tab, uncheck the "Auto Syntax Check" box. (See screenshot, below.)
This change does not make the editor stop compiling in the background and marking syntax errors in red (or wha...
How to do Mercurial's 'hg remove' for all missing files?
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This will add all new files that are not ignored, and remove all locally missing files
hg addremove
Either of these will remove all locally missing files(They are the same command)
hg remove --after
hg remove -A
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jQuery: select an element's class and id at the same time?
I've got some links that I want to select class and id at the same time.
6 Answers
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“sending 'const NSString *' to parameter of type 'NSString *' discards qualifiers” warning
... I wish I could give you ten upvotes! Thank you for your understandable and very helpful answer!
– Constantino Tsarouhas
Jan 2 '12 at 20:17
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Ruby on Rails Callback, what is difference between :before_save and :before_create?
Could you explain in detail what the :before_save and :before_create Ruby on Rails callbacks are, and what they have to do with Rails validations? Does validation occur after :before_save or :before_create ?
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Packing NuGet projects compiled in release mode?
...modified in the project file directly (no VS GUI option). To avoid the command-line property tweak for all future nuget pack calls, edit the project file XML in your favorite text editor.
– patridge
Jun 30 '11 at 22:07
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