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Replace transparency in PNG images with white background
...nvert" operations, but either nothing happens at all or I get an error. I don't want to go to an intermediate JPG form because I don't want the artifacts. Of course it's easy to do this in Gimp or Photoshop or whatever, but I'd really rather script it from the command line because there are many ...
Access an arbitrary element in a dictionary in Python
... cryptic and I'd rather prefer your code.
If you want to remove any item, do:
key, value = mydict.popitem()
Note that "first" may not be an appropriate term here because dict is not an ordered type in Python < 3.6. Python 3.6+ dicts are ordered.
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Optimise PostgreSQL for fast testing
...s. Even minor releases should always be followed; see the version policy.
Don'ts
Do NOT put a tablespace on a RAMdisk or other non-durable storage.
If you lose a tablespace the whole database may be damaged and hard to use without significant work. There's very little advantage to this compared t...
How do you echo a 4-digit Unicode character in Bash?
...ls in Gnome show the symbols properly... The real terminals (tty1-6) still don't though.
– trusktr
Oct 3 '12 at 0:09
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Move branch pointer to different commit without checkout
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You can do it for arbitrary refs. This is how to move a branch pointer:
git update-ref -m "reset: Reset <branch> to <new commit>" refs/heads/<branch> <commit>
where -m adds a message to the reflog for the bra...
How do I unset an element in an array in javascript?
How do I remove the key 'bar' from an array foo so that 'bar' won't show up in
6 Answers
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How to wrap async function calls into a sync function in Node.js or Javascript?
... be changed to return merely a promise or demand a callback parameter. How do you meet both requirements?
10 Answers
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How do you get a directory listing sorted by creation date in python?
...in a directory, sorted by date [created | modified], using python, on a windows machine?
17 Answers
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What does do?
...en using the X-UA-Compatible tag, it should be as high as possible in your document head:
If you are using the X-UA-Compatible META tag you want to place it as close to the top of the page's HEAD as possible. Internet Explorer begins interpreting markup using the latest version. When Internet Ex...
Slowing speed of Viewpager controller in android
... should work, so simply try to remove that argument from the call. If that doesn't work, add: 'Interpolator sInterpolator = new AccelerateInterpolator()'
– marmor
Apr 12 '12 at 6:27
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