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Asynchronous vs synchronous execution, what does it really mean? [closed]
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When you execute something synchronously, you wait for it to finish before moving on to another task. When you execute something asynchronously, you can move on to another task before it finishes.
That being said, in the context of computers t...
Uninitialized constant ActiveSupport::Dependencies::Mutex (NameError)
When I want to create a Ruby on Rails project, I get the message below.
11 Answers
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Remove duplicate rows in MySQL
... is to add a UNIQUE index on the 3 columns. When you write the ALTER statement, include the IGNORE keyword. Like so:
ALTER IGNORE TABLE jobs
ADD UNIQUE INDEX idx_name (site_id, title, company);
This will drop all the duplicate rows. As an added benefit, future INSERTs that are duplicates will ...
Set value of hidden field in a form using jQuery's “.val()” doesn't work
...texens" first, and then with "#input:hidden#texens" and neither of them seemed to work. When I changed the input type in the form from "hidden" to "text", and "#input:hidden:texens" to "#input:text:texens", it worked without any trouble. The "#input:text#texens" was a typo above, and should have b...
jQuery - checkbox enable/disable
I have a bunch of checkboxes like this. If the "Check Me" checkbox is checked, all the other 3 checkboxes should be enabled, else they should be disabled. How can I do this using jQuery?
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Calling a function on bootstrap modal open
... JQuery UI's dialog, and it had the open option, where you can specify some Javascript code to execute once the dialog is opened. I would have used that option to select the text within the dialog using a function I have.
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C# “internal” access modifier when doing unit testing
... that we don't want to declare public from the testing project. This makes me think that I should just always use internal because at least each project (should?) have its own testing project. Can you guys tell me why I shouldn't do this? When should I use private ?
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Duplicate ID, tag null, or parent id with another fragment for com.google.android.gms.maps.MapFragme
...esirable.
After lots of trial and error, I found a solution that works for me:
private static View view;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
if (view != null) {
ViewGroup parent = (ViewGroup) view.getParent();
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Visual Studio 2010 annoyingly opens documents in wrong MDI pane
Visual Studio's MDI is currently causing me a lot of frustration. Here is my basic layout:
5 Answers
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Writing to output window of Visual Studio
I am trying to write a message to the output window for debugging purposes. I searched for a function like Java's system.out.println("") . I tried Debug.Write , Console.Write , and Trace.Write . It does not give an error, but it does not print anything either.
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