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Regex to check whether a string contains only numbers [duplicate]
...ore digits, use + instead of *
^[0-9]+$
As the many others have pointed out, there are more than a few ways to achieve this, but I felt like it was appropriate to point out that the code in the original question only requires a single additional character to work as intended.
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Having a UITextField in a UITableViewCell
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Try this out. Works like a charm for me (on iPhone devices). I used this code for a login screen once. I configured the table view to have two sections. You can of course get rid of the section conditionals.
- (UITableViewCell *)tabl...
Reducing MongoDB database file size
...the replicate / --repair / switch over approach if you want to compact without taking your database offline.
– David J.
Nov 18 '10 at 15:46
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How can I parse JSON with C#?
...an be turned into a Date via new Date(str), but JSON.parse knows nothing about dates. You'd have to pass in a reviver that checked each and every string value against a pattern.
– T.J. Crowder
Sep 27 '15 at 16:23
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method of iterating over sqlalchemy model's defined columns?
I've been trying to figure out how to iterate over the list of columns defined in a SQLAlchemy model. I want it for writing some serialization and copy methods to a couple of models. I can't just iterate over the obj.__dict__ since it contains a lot of SA specific items.
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How to write :hover condition for a:before and a:after?
...he a element, then this is not possible other than through some obscure layout-dependent workaround. As implied by the text, standard CSS pseudo-elements cannot currently have pseudo-classes. In that case, you will need to apply :hover to an actual child element instead of a pseudo-element.
1 Of co...
How do I install Maven with Yum?
I'm trying not to learn much about either yum or maven. I've inherited this code and I don't want to spend more time than I have to in this environment.
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IIS - 401.3 - Unauthorized
... I need to express my gratitude. There is no way I would have figured this out.
– Jonny Cook
Aug 29 '17 at 1:58
@RaviR...
Git rebase --continue complains even when all merge conflicts have been resolved
...ved my evening. Though it's a simple tool, but I'd never be able to figure out how to solve my conflicts without this tool.
– eonil
Mar 20 '17 at 12:55
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What does inverse_of do? What SQL does it generate?
...the inconsistencies in the definition are bothersome, but it has helped me out in a few cases. Any reason I shouldn't just stick it everywhere?
– Ibrahim
Jul 6 '12 at 0:08
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