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Prevent double submission of forms in jQuery
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Update in 2018: I just got some points for this old answer, and just wanted to add that the best solution would be to make the operation idempotent so that duplicate submissions are harmless.
Eg, if the form creates an order, put a unique ID in the form. The first time ...
How does Django's Meta class work?
...estion about two different things:
Meta inner class in Django models:
This is just a class container with some options (metadata) attached to the model. It defines such things as available permissions, associated database table name, whether the model is abstract or not, singular and plural versi...
Fragment onCreateView and onActivityCreated called twice
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I was scratching my head about this for a while too, and since Dave's explanation is a little hard to understand I'll post my (apparently working) code:
private class TabListener<T extends Fragment> implements ActionBar.TabListener {
private Fragm...
How to remove a single, specific object from a ConcurrentBag?
...ut it back then the next item you remove may be the same item again. There is no guarantee that repeatedly removing items and putting them back will allow you to iterate over the all the items.
Two alternatives for you:
Remove all items and remember them, until you find the one you want to remove...
UnicodeDecodeError: 'utf8' codec can't decode byte 0x9c
I have a socket server that is supposed to receive UTF-8 valid characters from clients.
9 Answers
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stdlib and colored output in C
...es to show colours and other things.
Don't bother with libraries, the code is really simple.
More info is here.
Example in C:
#include <stdio.h>
#define ANSI_COLOR_RED "\x1b[31m"
#define ANSI_COLOR_GREEN "\x1b[32m"
#define ANSI_COLOR_YELLOW "\x1b[33m"
#define ANSI_COLOR_BLUE "\x1...
Using Application context everywhere?
In an Android app, is there anything wrong with the following approach:
9 Answers
9
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SourceKitService Terminated
I am having a issue with Xcode where the error "Source Kit Service Terminated" is popping up and all syntax highlighting and code completion is gone in Swift. How can I fix this?
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How to use a decimal range() step value?
Is there a way to step between 0 and 1 by 0.1?
33 Answers
33
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C# constructor execution order
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The order is:
Member variables are initialized to default values for all classes in the hierarchy
Then starting with the most derived class:
Variable initializers are executed for the most-derived type
Constructor chaining works ...