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How to add an object to an array
...push(b);
// a[0] === b;
Extra information on Arrays
Add more than one item at a time
var x = ['a'];
x.push('b', 'c');
// x = ['a', 'b', 'c']
Add items to the beginning of an array
var x = ['c', 'd'];
x.unshift('a', 'b');
// x = ['a', 'b', 'c', 'd']
Add the contents of one array to ano...
Finding the index of elements based on a condition using python list comprehension
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you have lists, one for ranges and one for angles, you want to filter out the range values that are above some threshold. How do you also filter the angles corresponding to those ranges in a "best way" fashion?
– Mehdi
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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 ...
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...
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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Why does C# allow {} code blocks without a preceding statement?
... a fact which is observable in mixed-language projects if the first thing done with a variable in a loop is to pass it as an out parameter to an interface implementation written in another language, and that implementation reads the variable before writing it.
– supercat
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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 ...
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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Can I use assert on Android devices?
...ncludes the code to perform the check. Checking assertions is turned on in one of two ways:
(1) by setting the system property "debug.assert" via:
adb shell setprop debug.assert 1
which I verified works as intended as long as you reinstall your app after doing this, or
(2) by sending the comma...