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How do I execute a string containing Python code in Python?
...ntered code. You should always look at alternatives first, such as higher order functions, to see if these can better meet your needs.
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Is there a performance difference between i++ and ++i in C?
...++i is the "semantic" way to use a unary operator, while i++ is around in order to fit a specific need (evaluation before addition).
– TM.
Aug 12 '09 at 21:55
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Compare two data.frames to find the rows in data.frame 1 that are not present in data.frame 2
...lexibility in terms of what kind of comparisons are allowed (e.g. changing order of elements of each vector, changing order and names of variables, shortening variables, changing case of strings). From this, you should be able to figure out what was missing from one or the other. For example (this i...
How to find/identify large commits in git history?
...> bigtosmall.txt
done;
Now you can look at the file bigtosmall.txt in order to decide which files you want to remove from your Git history.
Step 4 To perform the removal (note this part is slow since it's going to examine every commit in your history for data about the file you identified):
g...
How to set HTTP headers (for cache-control)?
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Is order in this important? "max-age=290304000, public" Or "public, max-age=290304000" or both are equally right?
– Satya Prakash
Sep 8 '13 at 8:02
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What is the difference between “Rollback…” and “Back Out Submitted Changelist #####” in Perforce P4V
...changes that were made afterwards. I had to do a sync and then resolve in order to get the changes back in which were submitted after the backout.
– gdw2
Mar 22 '12 at 21:20
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specify project file of a solution using msbuild
...em work out the dependencies automatically.
If you are enforcing a build order using the sln file, I recommend working those dependencies directly into the proj files and removing them from the sln. This will allow you to invoke any proj file from MSBuild directly and the projects will all build ...
What is the precise meaning of “ours” and “theirs” in git?
...of git history.
The 'theirs' refers to the version that holds the work in order to be rebased (changes to be replayed onto the current branch).
This may appear to be swapped to people who are not aware that doing rebasing (e.g. git rebase) is actually taking your work on hold (which is theirs) in ...
Does Git warn me if a shorthand commit ID can refer to 2 different commits?
...ed this one and the one
* that we previously discarded in the reverse order,
* we would end up showing different results in the
* same repository!
*/
ds->candidate_ok = (!ds->disambiguate_fn_used ||
ds->fn(ds->candidate, ds->cb_data));
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Inverse dictionary lookup in Python
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@BrianJack: Dictionaries are not ordered, like sets. Look at collections.OrderedDict for an implementation that is ordered.
– Martijn Pieters♦
Jul 24 '12 at 14:40
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