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changing source on html5 video tag
...tag, but it would always generate a failure on a javascript debug console. Now I know I can hold off on adding a 'source' until the user selects one. Till now, I didn't understand I needed to make the use CreateElement() to make a source, and then use appendChild() to add it to the video element! Fo...
Remove non-utf8 characters from string
...sses all this issues. It´s called Encoding::toUTF8().
You dont need to know what the encoding of your strings is. It can be Latin1 (ISO8859-1), Windows-1252 or UTF8, or the string can have a mix of them. Encoding::toUTF8() will convert everything to UTF8.
I did it because a service was giving m...
Change text color based on brightness of the covered background area?
I've thought about the following for a while already, so now I want to know your opinions, possible solutions, and so on.
8...
How to remove old Docker containers
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Updated Answer
Use docker system prune or docker container prune now. See VonC's updated answer.
Previous Answer
Composing several different hints above, the most elegant way to remove all non-running containers seems to be:
docker rm $(docker ps -q -f status=exited)
-q prints just the...
How to send a command to all panes in tmux?
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I don't know how or if that's possible. What's your use-case scenario that you need to send a command via <prefix>:?
– kshenoy
Apr 30 '16 at 6:40
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Execute code when Django starts ONCE only?
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Update from Pykler's answer below: Django 1.7 now has a hook for this
Don't do it this way.
You don't want "middleware" for a one-time startup thing.
You want to execute code in the top-level urls.py. That module is imported and executed once.
urls.py
from django...
git mv and only change case of directory
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Thanks. This was driving me crazy. I didn't know about the -A or the --amend option.
– oschrenk
Jun 10 '10 at 5:18
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Make .gitignore ignore everything except a few files
... in anything other than the root dir won't be found anyway. I'm using this now (with *.pl) and all *.pl files are being ignored even though there are many in the subdirectories below the .gitignore file
– PandaWood
Nov 6 '11 at 1:44
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How can I use Homebrew to install both Python 2 and 3 on Mac?
...ing Homebrew as I don't want to mess with path and get into trouble.
Right now I have 2.7 installed through Homebrew.
9 Ans...
Difference between a “coroutine” and a “thread”?
...ore machines, that concurrency was simulated with some help from the OS -- nowadays, since so many machines are multi-CPU and/or multi-core, threads will de facto be executing simultaneously, not just "conceptually").
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