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How to list containers in Docker
...ject it’s interacting with. For example list and start of containers are now subcommands of docker container and history is a subcommand of docker image.
These changes let us clean up the Docker CLI syntax, improve help text and make Docker simpler to use. The old command syntax is still supported...
Bash empty array expansion with `set -u`
..., Bash 4.4 fixed the situation; you don't need to use this pattern if you know your script will only run on 4.4+, but many systems are still on earlier versions.
– dimo414
May 9 at 22:28
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How to avoid the “divide by zero” error in SQL?
... a much nicer way of doing it:
Select dividend / NULLIF(divisor, 0) ...
Now the only problem is to remember the NullIf bit, if I use the "/" key.
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How to convert ‘false’ to 0 and ‘true’ to 1 in Python
...actly my point, the "problem" is that u'true' == 'true' and that we don't know what the use case is. Maybe they want a different behaviour for the situation where type(x) != unicode.
– wim
Dec 30 '13 at 14:26
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Encoding URL query parameters in Java
How does one encode query parameters to go on a url in Java? I know, this seems like an obvious and already asked question.
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Finding the index of an item in a list
...ist in order, until it finds a match. If your list is long, and you don't know roughly where in the list it occurs, this search could become a bottleneck. In that case, you should consider a different data structure. Note that if you know roughly where to find the match, you can give index a hint. F...
Best Practices for Laravel 4 Helpers and Basic Functions?
... If you were to add your helper class to your app.php file you can now access the class directly like this: Helper::hellowWorld();
– Helmut Granda
Sep 25 '13 at 15:36
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Is it possible to make anonymous inner classes in Java static?
...'t recall having seen any obvious errors in the Java Glossary before. From now on, I take it with a grain of salt.
– Michael Myers♦
Apr 17 '09 at 15:17
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.classpath and .project - check into version control or not?
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Wow, I didn't know they added this... Would have saved us some grief
– Uri
May 12 '10 at 14:20
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How To Save Canvas As An Image With canvas.toDataURL()?
...ename could be attached to the data, but I've found no way to do that. For now, you have to specify the filename yourself."
– SColvin
Sep 13 '13 at 0:14
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