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How to prevent form from submitting multiple times from client side?
Sometimes when the response is slow, one might click the submit button multiple times.
23 Answers
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Is a colon `:` safe for friendly-URL use?
...ently wrote a URL encoder, so this is pretty fresh in my mind.
http://site/gwturl#user:45/comments
All the characters in the fragment part (user:45/comments) are perfectly legal for RFC 3986 URIs.
The relevant parts of the ABNF:
fragment = *( pchar / "/" / "?" )
pchar = unreserv...
Android; Check if file exists without creating a new one
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Your chunk of code does not create a new one, it only checks if its already there and nothing else.
File file = new File(filePath);
if(file.exists())
//Do something
else
// Do something else.
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How do I install PyCrypto on Windows?
I've read every other google source and SO thread, with nothing working.
20 Answers
20...
How to remove all MySQL tables from the command-line without DROP database permissions? [duplicate]
...as access to the database drops, but no access to re-creating the database itself, for this reason we must drop the tables manually. Is there a way to drop all the tables at once? Bear in mind that most of the tables are linked with foreign keys so they would have to be dropped in a specific order.
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How do I call the default deserializer from a custom deserializer in Jackson
...n I will do some custom things but first I want to deserialize the object with the default Jackson behavior.
11 Answers
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Django using get_user_model vs settings.AUTH_USER_MODEL
...cannot guarantee that the User model is already loaded into the app cache. It might work in your specific setup, but it is a hit-and-miss scenario. If you change some settings (e.g. the order of INSTALLED_APPS) it might very well break the import and you will have to spend additional time debugging....
HTML text input allow only numeric input
...pdated answer. Comments below refer to an old version which messed around with keycodes.
JavaScript
Try it yourself on JSFiddle.
You can filter the input values of a text <input> with the following setInputFilter function (supports Copy+Paste, Drag+Drop, keyboard shortcuts, context menu ope...
Switching to landscape mode in Android Emulator
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Try:
ctrl+fn+F11 on Mac to change the landscape to portrait and vice versa.
left-ctrl+F11on Windows 7.
ctrl+F11on Linux.
For Mac users, you only need to use the fn key if the setting "Use all F1, F2 etc. keys as function keys" (under System Preferences -> Keyboard) is check...
How to reload .bash_profile from the command line?
I can get the shell to recognize changes to .bash_profile by exiting and logging back in but I would like to be able to do it on demand.
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