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Decimal number regular expression, where digit after decimal is optional
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Use the following:
/^\d*\.?\d*$/
^ - Beginning of the line;
\d* - 0 or more digits;
\.? - An optional dot (escaped, because in regex, . is a special character);
\d* - 0 or more digits (the decimal part);
$ - End of the line.
This allows for .5 decimal rather than requiring the leading zero,...
Get difference between two lists
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@Drewdin: Lists do not support the "-" operand. Sets, however, do, and that what is demonstrated above if you look closely.
– Godsmith
Oct 14 '14 at 21:21
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Regular expression to match DNS hostname or IP Address?
...one have a regular expression handy that will match any legal DNS hostname or IP address?
21 Answers
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What characters do I need to escape in XML documents?
What characters must be escaped in XML documents, or where could I find such a list?
9 Answers
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Regular expression to match any character being repeated more than 10 times
I'm looking for a simple regular expression to match the same character being repeated more than 10 or so times. So for example, if I have a document littered with horizontal lines:
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What is the difference between int, Int16, Int32 and Int64?
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Each type of integer has a different range of storage capacity
Type Capacity
Int16 -- (-32,768 to +32,767)
Int32 -- (-2,147,483,648 to +2,147,483,647)
Int64 -- (-9,223,372,036,854,775,808 to +9,223,372,036,854,775,807)
As stated by James Sutherland i...
What is non-blocking or asynchronous I/O in Node.js?
In the context of Server Side Javascript engines, what is non-blocking I/O or asynchronous I/O? I see this being mentioned as an advantage over Java server side implementations.
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Are there pronounceable names for common Haskell operators? [closed]
I'm reading Learn You a Haskell for Great Good , and I never know how to pronounce the Haskell operators. Do they have "real" names? ?
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REST URI convention - Singular or plural name of resource while creating it
...ve observed that in some RESTful services they use different resource URI for update/get/delete and Create. Such as
22 Answ...
What does ** (double star/asterisk) and * (star/asterisk) do for parameters?
In the following method definitions, what does the * and ** do for param2 ?
22 Answers
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