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Fastest way to check if string contains only digits
...nyone cares, this can certainly be reduced to a one-liner -> return str.All(c => c >= '0' && c <= '9');
– Jonesopolis
Feb 6 '14 at 14:07
18
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How do I delete specific lines in Notepad++?
...code files (C#) and want to remove the regions. And I would like to delete all the lines that have the string '#region'. That's just an example, and I can think of several more uses, but is that even possible?
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mysql: see all open connections to a given database?
With administrative permissions im mysql, how can I see all the open connections to a specific db in my server?
8 Answers
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Make Vim show ALL white spaces as a character
I can't find a way to make Vim show all white spaces as a character.
All I found was about tabs, trailing spaces etc.
23 An...
Edit the root commit in Git?
...kout <sha1-of-root>
# amend the commit
git commit --amend
# rebase all the other commits in master onto the amended root
git rebase --onto HEAD HEAD master
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Delete all local changesets and revert to tree
I'm using Mercurial and I've got into a terrible mess locally, with three heads. I can't push, and I just want to delete all my local changes and commits and start again with totally clean code and a clean history.
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How to check if a particular service is running on Ubuntu
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I don't have an Ubuntu box, but on Red Hat Linux you can see all running services by running the following command:
service --status-all
On the list the + indicates the service is running, - indicates service is not running, ? indicates the service state cannot be determined.
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List comprehension in Ruby
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If you really want to, you can create an Array#comprehend method like this:
class Array
def comprehend(&block)
return self if block.nil?
self.collect(&block).compact
end
end
some_array = [1, 2, 3, 4, 5, 6]
new_ar...
How to create a css rule for all elements except one class?
...t for my project. Is there any way I can create a css rule that applies to all table elements EXCEPT table elements belonging to the class "dojoxGrid"? Something like:
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UIScrollView Scrollable Content Size Ambiguity
...st sorted out in this way:
Inside the UIScrollView add a UIView (we can call that contentView);
In this contentView, set top, bottom, left and right margins to 0 (of course from the scrollView which is the superView); Set also align center horizontally and vertically;
Finished.
Now you can add ...