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Optimise PostgreSQL for fast testing
...ts of work, increase work_mem to give them more RAM to play with for sorts etc. Beware that too high a work_mem setting can cause out-of-memory problems because it's per-sort not per-connection so one query can have many nested sorts. You only really have to increase work_mem if you can see sorts sp...
Making 'git log' ignore changes for certain paths
..., all changes to those files will be ignored by git status, git commit -a, etc. When you're ready to commit those files, just reverse it:
git update-index --no-skip-worktree path/to/file
and commit as normal.
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How to automatically convert strongly typed enum into int?
... like implicit conversion to indexes, seamless using of bitwise operations etc.. The new style enums added a really great scoping thing, but... You cannot use just that thing (even with explicit underlying type specification!). So now you're either forced to use old style enums with tricks like putt...
Right way to reverse pandas.DataFrame?
...a time series while remaining agnostic to the time step (day, month, year, etc.). So you may be working with a data frame, do a transformation on it, which messes up the indexing. It’s common to thus reindex the frame.
– Cybernetic
Jul 12 at 0:23
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UIImagePickerController breaks status bar appearance
...];
self.cameraController.delegate = (id)self; // dpjanes solution!
etc...
Hope it helps someone
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What is a NullPointerException, and how do I fix it?
...ou should know, Java types are divided into primitive types (boolean, int, etc.) and reference types. Reference types in Java allow you to use the special value null which is the Java way of saying "no object".
A NullPointerException is thrown at runtime whenever your program attempts to use a null...
Regular Expression For Duplicate Words
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Great, works with apostrophes/hyphens/etc. too - thanks!
– user993683
May 13 '15 at 0:45
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How do I change the root directory of an apache server? [closed]
...ing in your httpd.conf file. Chances are it will be under something like /etc/apache2/conf/httpd.conf
Use your favourite editor (I recommend Vim) and look for the DocumentRoot and change it to /users/spencer/projects. Also look a little further down for a setting that looks like this:
<Directo...
What Every Programmer Should Know About Memory?
...spend the time reading the manuals about details about the actual timings, etc. But for people interested in the HW low level stuff? Maybe not useful, but at least entertaining.
– Voo
Nov 14 '11 at 18:52
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How do I replace multiple spaces with a single space in C#?
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Since it will catch runs of any kind of whitespace (e.g. tabs, newlines, etc.) and replace them with a single space.
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