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Prevent any form of page refresh using jQuery/Javascript
...on() {
return "Dude, are you sure you want to leave? Think of the kittens!";
}
</script>
The user will be prompted with the message, and given an option to stay on the page or continue on their way. This is becoming more common. Stack Overflow does this if you try to navigate awa...
Caveats of select/poll vs. epoll reactors in Twisted
...is a natural replacement for Select and Poll based networking, especially with Twisted. Which makes me paranoid, its pretty rare for a better technique or methodology not to come with a price.
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Why should you use an ORM? [closed]
...cess more abstract and portable. ORM implementation classes know how to write vendor-specific SQL, so you don't have to.
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Use basic authentication with jQuery and Ajax
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Use jQuery's beforeSend callback to add an HTTP header with the authentication information:
beforeSend: function (xhr) {
xhr.setRequestHeader ("Authorization", "Basic " + btoa(username + ":" + password));
},
...
Catch Ctrl-C in C
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With a signal handler.
Here is a simple example flipping a bool used in main():
#include <signal.h>
static volatile int keepRunning = 1;
void intHandler(int dummy) {
keepRunning = 0;
}
// ...
int main(void) {
...
Clear Application's Data Programmatically
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There's a new API introduced in API 19 (KitKat):
ActivityManager.clearApplicationUserData().
I highly recommend using it in new applications:
import android.os.Build.*;
if (VERSION_CODES.KITKAT <= VERSION.SDK_INT) {
((ActivityManager)context.getSystemServic...
Delete an element from a dictionary
Is there a way to delete an item from a dictionary in Python?
15 Answers
15
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ViewPager and fragments — what's the right way to store fragment's state?
...m to be very nice for separation of UI logic into some modules. But along with ViewPager its lifecycle is still misty to me. So Guru thoughts are badly needed!
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Create directory if it does not exist
I am writing a PowerShell script to create several directories if they do not exist.
11 Answers
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How do I design a class in Python?
...ally awesome help on my previous questions for detecting paws and toes within a paw , but all these solutions only work for one measurement at a time.
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