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Linux bash: Multiple variable assignment
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@LeeNetherton, good point, though I'm not sure if one needs the return status of echo command :-) I think at the time of writing the answer bash supporting this syntax was less common (as in installed by default), though I'm not 100% sure.
– Michael Kre...
Check if a String contains numbers Java
... It's not alien magic it's cryptic BS, back from the days when no one could do this stuff but the engineers who invented it because it's basically a secret code that only the creators know until they share it.
– JamisonMan111
Jun 21 '18 at 5:47
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Do rails rake tasks provide access to ActiveRecord models?
...erator to stub them out for you.
For example:
rails g task my_tasks task_one task_two task_three
You'll get a stub created in lib/tasks called my_tasks.rake (obviously use your own namespace.) Which will look like this:
namespace :my_tasks do
desc "TODO"
task :task_one => :environment ...
Can I recover a branch after its deletion in Git?
...to recreate the branch from there.
Credit to @Cascabel for this condensed/one-liner version.
You can do it in one step:
git checkout -b <branch> <sha>
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In which case do you use the JPA @JoinTable annotation?
...refuse to start up by printing the following error:
org.hibernate.AnnotationException:
Associations marked as mappedBy must not define database mappings
like @JoinTable or @JoinColumn
Let's pretend that you have an entity named Project and another entity named Task and each project can ...
What is the difference between the different methods of putting JavaScript code in an ?
...JavaScript links can point to for their href section in the event that someone happens to turn off JavaScript after logging in. I would highly encourage you to still allow this fallback mechanism. Something like this will adhere to "best practices" and accomplish your goal:
<a href="javascript_...
iPhone Safari Web App opens links in new window
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Is there an example of the opposite? Forcing an iPhone web app to open a page in Safari eventhough it's a javascript location change?
– tkahn
Jan 4 '12 at 16:23
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Problems with contenttypes when loading a fixture in Django
...thout the --natural option and it worked. Also the documentation here says one should use this option if DUMPING auth.permission and contenttypes.
– wlnirvana
Dec 26 '14 at 5:05
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How to avoid Dependency Injection constructor madness?
...fied static factory. For lots of reasons I consider this an anti-pattern.
One of the wonderful benefits of Constructor Injection is that it makes violations of the Single Responsibility Principle glaringly obvious.
When that happens, it's time to refactor to Facade Services. In short, create a new...
Converting XML to JSON using Python?
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There is no "one-to-one" mapping between XML and JSON, so converting one to the other necessarily requires some understanding of what you want to do with the results.
That being said, Python's standard library has several modules for par...