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Regex for numbers only
...ch more than one digit.
Note that "\d" will match [0-9] and other digit characters like the Eastern Arabic numerals ٠١٢٣٤٥٦٧٨٩. Use "^[0-9]+$" to restrict matches to just the Arabic numerals 0 - 9.
If you need to include any numeric representations other than just digits (like decim...
T-SQL CASE Clause: How to specify WHEN NULL
... firts+space+last name.
this will work as long as the default setting for concatenation with null strings is set:
SET CONCAT_NULL_YIELDS_NULL ON
this shouldn't be a concern since the OFF mode is going away in future versions of SQl Server
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Extracting the last n characters from a ruby string
To get the last n characters from a string, I assumed you could use
8 Answers
8
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Error in strings.xml file in Android
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post your complete string. Though, my guess is there is an apostrophe (') character in your string. replace it with (\') and it will fix the issue. for example,
//strings.xml
<string name="terms">
Hey Mr. Android, are you stuck? Here, I\'ll clear a path for you.
</string>
Ref:
ht...
NSLog the method name with Objective-C in iPhone
...t pointer incompatibility, but it works... So _cmd (type: SEL) really is a char* !?
– Nicolas Miari
Jun 19 '12 at 9:46
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JavaScript style for optional callbacks
...tions
( rest
, combs =>
callback (combs .concat (combs .map (c => [ x, ...c ])))
)
console.log (combinations (['A', 'B', 'C']))
// [ []
// , [ 'C' ]
// , [ 'B' ]
// , [ 'B', 'C' ]
// , [ 'A' ]
// , [ 'A', 'C' ]
// , [ 'A', 'B' ]
// , [ 'A', 'B...
How to read a single char from the console in Java (as the user types it)?
Is there an easy way to read a single char from the console as the user is typing it in Java? Is it possible? I've tried with these methods but they all wait for the user to press enter key:
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Getting the first character of a string with $str[0]
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Yes. Strings can be seen as character arrays, and the way to access a position of an array is to use the [] operator. Usually there's no problem at all in using $str[0] (and I'm pretty sure is much faster than the substr() method).
There is only one ca...
How do I create a URL shortener?
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Food for thought, it might be useful to add a two character checksum to the url. That would prevent direct iteration of all the urls in your system. Something simple like f(checksum(id) % (62^2)) + f(id) = url_id
– koblas
Sep 4 '10 at...
SQL Server: converting UniqueIdentifier to string in a case statement
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I think I found the answer:
convert(nvarchar(50), RequestID)
Here's the link where I found this info:
http://msdn.microsoft.com/en-us/library/ms187928.aspx
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