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MySQL: multiple tables or one table with many columns?
... better (since it reduces the amount of work the database needs to do when reading data). I'd highly recommend making your data as normalized as possible to start out, and only denormalize if you're aware of performance problems in specific queries.
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Get a filtered list of files in a directory
...cluded_extensions)]
I prefer this form of list comprehensions because it reads well in English.
I read the fourth line as:
For each fn in os.listdir for my path, give me only the ones that match any one of my included extensions.
It may be hard for novice python programmers to really get used ...
Mercurial undo last commit
...so allows an undo operation.
See TortoiseHg Recovery section:
This thread also details the difference between hg rollback and hg strip:
(written by Martin Geisler who also contributes on SO)
'hg rollback' will remove the last transaction. Transactions are a concept often found in databa...
Remove specific characters from a string in Python
...6 and newer Python 2.x versions *, you can instead use str.translate, (but read on for Python 3 differences):
line = line.translate(None, '!@#$')
or regular expression replacement with re.sub
import re
line = re.sub('[!@#$]', '', line)
The characters enclosed in brackets constitute a character...
Node.js create folder or use existing
I already have read the documentation of Node.js and, unless if I missed something, it does not tell what the parameters contain in certain operations, in particular fs.mkdir() . As you can see in the documentation, it's not very much.
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Best practice to call ConfigureAwait for all server-side code
...ASP.NET team has the best information on using async on ASP.NET.
I had read that it is more performant since it doesn't have to switch thread contexts back to the original thread context.
This is true with UI applications, where there is only one UI thread that you have to "sync" back to.
In ...
ASP.NET MVC on IIS 7.5
...e sure preCondition attribute is empty means it will run on all requests. [Read more](http://www.britishdeveloper.co.uk/2010/06/dont-use-modules-runallmanagedmodulesfo.html,"Read original post")
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Git Push ERROR: Repository not found
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Check to see if you have read-write access.
The Git error message is misleading. I had a similar issue. I had been added to an existing project. I cloned it and committed a local change. I went to push and got the ERROR: Repository not found. error ...
OS X Terminal Colors [closed]
...e sourced upon login.
If this is not working as expected for you, please read some of the comments below since I'm not using MacOS very often..
If you want to do this on a remote server, check if the ~/.bash_profile file exists. If not, simply create it and it should be automatically sourced upo...
How to overwrite styling in Twitter Bootstrap
... @Kreker That probably has a lot to do with specificity. You can read up about it here (old article), but basically .sidebar.right is more specific than .sidebar. That is probably the problem. Use web inspector to figure out what's overriding it.
– citelao
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