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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...
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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How to include (source) R script in other scripts
...uld go into util.R. You just put the entire body of what's in util.R right now into a giant if() statement, if that makes sense.
– Keith Twombley
May 16 '13 at 17:18
add a com...
How do CDI and EJB compare? interact?
...
It is currently indeed a bit confusing as there are now multiple component models in Java EE. They are CDI, EJB3 and JSF Managed Beans.
CDI is the new kid on the block. CDI beans feature dependency injection, scoping and an event bus. CDI beans are the most flexible with resp...
Git mergetool with Meld on Windows
...meld
[mergetool "meld"]
path = C:\\Program Files (x86)\\Meld\\Meld.exe
Now call git difftool in Git Bash for Windows and Meld will open up as your default difftool viewer.
Linux:
UPDATE 20 Sept. 2019:
- I might as well put the Linux version here too for my own reference in one place if nothi...
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: ...
Is a Java hashmap search really O(1)?
...hm! We can generalzie this to
pcollision x k = (n / capacity)k
And now we can disregard some arbitrary number of collisions and end up with vanishingly tiny likelihood of more collisions than we are accounting for. You could get the probability to an arbitrarily tiny level by choosing the c...
How can I download a specific Maven artifact in one command line?
...-dormant state within Maven 2. So I think we have to use the long name for now (when using the plugin without a pom, which is the idea behind dependency:get).
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How do I Geocode 20 addresses without receiving an OVER_QUERY_LIMIT response?
...phical coordinates
i.e. "I want a list of points that are near where I'm now"
Displaying the map will be a lot faster
Even with more than 20 locations on it
Oh, and, also (last but not least) : this will work ;-)
You will less likely hit the limit of X geocoder calls in N seconds.
And you wi...
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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