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Associative arrays in Shell scripts
...ys that are built in to the shell. This should work in bash 4.0 (available now on most major distros, though not on OS X unless you install it yourself), ksh, and zsh:
declare -A newmap
newmap[name]="Irfan Zulfiqar"
newmap[designation]=SSE
newmap[company]="My Own Company"
echo ${newmap[company]}
e...
Using the scrollwheel in GNU screen
...
Yes, I know about scrollback mode. I was hoping that I would not have to manually enter scrollback mode in order to use the mouse. Thanks.
– JesperE
Jan 24 '09 at 20:34
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How do I connect to a MySQL Database in Python?
... documentation. A good starting point.
3 - More advanced usage
Once you know how it works, You may want to use an ORM to avoid writing SQL manually and manipulate your tables as they were Python objects. The most famous ORM in the Python community is SQLAlchemy.
I strongly advise you to use it: ...
SQL Server ':setvar' Error
...TABASE [$DatabaseName] it was simply CREATE DATABASE MYDBNAME. This script now works to create my database via executenonquery() during my first application startup after install.
– Scott
Jul 19 '16 at 20:56
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When to use RSpec let()?
...able, and a few of them started writing with it. I've got enough spec code now using let() that I run into some of those problems too. I find myself going to the example, and starting from the innermost example group, work myself back up. It is the same skill as using a highly meta-programmable envi...
C# generic type constraint for everything nullable
...ct an instance. I use this pattern often.
– Mike Marynowski
Sep 7 '18 at 3:53
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Is \d not supported by grep's basic expressions?
...'s -E mode does not. That's so glaring I'm shocked I'm just discovering it now.
– Keith Tyler
Jun 23 '16 at 0:20
1
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HTML select form with option to enter custom value
...e of the id of the datalist.
Update: As of March 2019 all major browsers (now including Safari 12.1 and iOS Safari 12.3) support datalist to the level needed for this functionality. See caniuse for detailed browser support.
It looks like this:
<input type="text" list="cars" />
<data...
Access Asset Catalog programmatically
I know it's a new feature and this may not be possible, but I would love to be able to use an Asset Catalog to organize my assets, but I access all of my images programmatically. How would I access my images, now? Do I still access them by their file names like so:
...
How do I comment on the Windows command line?
...essor (such as within complex if or for statements) so I generally use rem nowadays. In any case, it's a hack, suborning the label infrastructure to make it look like a comment when it really isn't. For example, try replacing rem with :: in the following example and see how it works out:
if 1==1 (
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