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How to get the nth element of a python list or a default if not available
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l[index] if index < len(l) else default
To support negative indices we can use:
l[index] if -len(l) <= index < len(l) else default
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Stashing only staged changes in git - is it possible?
... STASH
Stage all your files that you need to stash.
Run git stash --keep-index. This command will create a stash with ALL of your changes (staged and unstaged), but will leave the staged changes in your working directory (still in state staged).
Run git stash push -m "good stash"
Now your "good st...
What is the difference between “long”, “long long”, “long int”, and “long long int” in C++?
...ctly 64 bits
std::size_t # can hold all possible object sizes, used for indexing
These (int*_t) can be used after including the <cstdint> header. size_t is in <stdlib.h>.
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im...
Stop LastPass filling out a form
...stpass user needs to have this option enabled: Settings > Advanced > Allow pages to disable autofill
So this depends on both user and the developer.
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Find out what process registered a global hotkey? (Windows API)
...is compilable in Delphi 2007 with a couple of tweaks.
It's a DLL with a call to SetWindowsHookEx that passes through a callback function, which can then intercept key strokes: In this case, it's tinkering with them for fun, changing left cursor to right, etc. A simple app then calls the DLL and re...
Fastest way to determine if an integer is between two integers (inclusive) with known sets of values
...inite set of values, then you could create a lookup table. Performing the indexing might be more expensive, but if you can fit the entire table in cache, then you can remove all branching from the code, which should speed things up.
For your data the lookup table would be 128^3 = 2,097,152. If yo...
Find the Smallest Integer Not in a List
...(1) additional space. Just go through the array sequentially and for every index write the value at the index to the index specified by value, recursively placing any value at that location to its place and throwing away values > N. Then go again through the array looking for the spot where value...
ViewModel Best Practices
...of the type of other ViewModels. For instance if you have 5 widgets on the index page in the membership controller, and you created a ViewModel for each partial view - how do you pass the data from the Index action to the partials? You add a property to the MembershipIndexViewModel of type MyPartial...
Merge two Git repositories without breaking file history
...es.
If you have paths that overlap, fix them up with
git filter-branch --index-filter
when you use log, ensure you "find copies harder" with
git log -CC
that way you will find any movements of files in the path.
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How do I quickly rename a MySQL database (change schema name)?
...es. You might want to do a mysqldump to move the views, after first moving all the tables. Also note that SHOW TABLES will show tables AND views, so beware.
– tuomassalo
Nov 1 '13 at 12:38
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