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Regular expression for floating point numbers
...ssues in some languages (like Java).
Thanks to the nameless one for originally recognizing this.
One relatively simple pattern for matching a floating point number is
[+-]?([0-9]*[.])?[0-9]+
This will match:
123
123.456
.456
See a working example
If you also want to match 123. (a period w...
psql: FATAL: role “postgres” does not exist
...s new posgres user won't have a password?
– olaoluwa_98
Nov 30 '19
What does “dereferencing” a pointer mean?
...
Reviewing the basic terminology
It's usually good enough - unless you're programming assembly - to envisage a pointer containing a numeric memory address, with 1 referring to the second byte in the process's memory, 2 the third, 3 the fourth and so on....
What ha...
How to run travis-ci locally
... order to run the build. With jenkins you can download jenkins and run locally. Does travis offer something like this?
9 ...
How To Accept a File POST
... Files are being saved as BodyPart_8b77040b-354b-464c-bc15-b3591f98f30f. Should not they be saved like pic.jpg exactly as it was on the client?
– lbrahim
Aug 13 '14 at 12:35
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angularjs directive call function specified in attribute and pass an argument to it
...
98
Marko's solution works well.
To contrast with recommended Angular way (as shown by treeface's...
What's the difference between text/xml vs application/xml for webservice response
...a nutshell (section 9.2):
The registration information for text/xml is in all respects the same
as that given for application/xml above (Section 9.1), except that
the "Type name" is "text".
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Is there a constraint that restricts my generic method to numeric types?
...uce Eckel:
And it's not clear that the added complexity is worth the small yield that you get. If something you want to do is not directly supported in the constraint system, you can do it with a factory pattern. You could have a Matrix<T>, for example, and in that Matrix you would like to...
How to change the default charset of a MySQL table?
...
If you want to change the table default character set and all character columns to a new character set, use a statement like this:
ALTER TABLE tbl_name CONVERT TO CHARACTER SET charset_name;
So query will be:
ALTER TABLE etape_prospection CONVERT TO CHARACTER SET utf8;
...
What is the purpose of Rank2Types?
I am not really proficient in Haskell, so this might be a very easy question.
6 Answers
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