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What's the idiomatic syntax for prepending to a short python list?
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The s.insert(0, x) form is the most common.
Whenever you see it though, it may be time to consider using a collections.deque instead of a list.
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How do browsers pause/change Javascript when tab or window is not active?
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Where is the warnings screen option in Android Studio?
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This does not show Java compiler warnings, but Android Lint issues!
– sschuberth
Jan 14 '15 at 13:09
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What is the smallest possible valid PDF?
...rtxref
149
%EOF
which is 291 bytes of PDF joy. Acrobat opens it, but it complains somewhat. There is one page in it and it is 3/72" square, the minimum allowed by the spec.
However, Acrobat X doesn't even bother with the cross reference table anymore, so we can take that out:
%PDF-1.0
1 0 obj...
How to use Git Revert
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git revert makes a new commit
git revert simply creates a new commit that is the opposite of an existing commit.
It leaves the files in the same state as if the commit that has been reverted never existed. For example, consider the following simple...
Use of an exclamation mark in a Git commit message via the command line
How do I enter an exclamation point into a Git commit message from the command line?
6 Answers
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Gets byte array from a ByteBuffer in java
Is this the recommended way to get the bytes from the ByteBuffer
6 Answers
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HTML5 Email Validation
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the email doesn't check for .com in an email. It only checks @ sign. Ex. I can enter example@gmail and save the form. though it is not a valid email address. Is there workaround to check properly example@gmail.com?
– Ruchika
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Amazon EC2, mysql aborting start because InnoDB: mmap (x bytes) failed; errno 12
...ould like to automatically enable swap file after each reboot.
Some useful command related to SWAP space:
$ swapon -s
$ free -k
$ swapoff -a
$ swapon -a
References:
http://www.thegeekstuff.com/2010/08/how-to-add-swap-space/
http://cloudstory.in/2012/02/getting-the-best-out-of-amazon-ec2-micro...
Disabling highlighting of current line in the Visual Studio editor
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