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Using jQuery to test if an input has focus
... CSS :hover using the $(#element).hover() method. The only problem is, now that jQuery handles both the form focus() and hover() , when an input has focus then the user moves the mouse in and out, the border goes away.
...
Understand the “Decorator Pattern” with a real world example
... sell few pizza varieties and they will also provide toppings in the menu. Now imagine a situation wherein if the pizza shop has to provide prices for each combination of pizza and topping. Even if there are four basic pizzas and 8 different toppings, the application would go crazy maintaining all t...
Reverse Range in Swift
...;(Range<Pos>)> {
return (start..<end).reverse()
}
So now I'm allowed to say:
for i in 5>>>1 {print(i)} // 4, 3, 2, 1
This covers just the most common case that occurs in my code, but it is far and away the most common case, so it's all I need at present.
I had a ki...
Which is faster: Stack allocation or Heap allocation
...
On some (mostly embedded, that I know of) architectures, stack may be stored in fast on-die memory (e.g. SRAM). This can make a huge difference!
– leander
Jul 15 '09 at 1:16
...
How can I test https connections with Django as easily as I can non-https connections using 'runserv
...req -new -x509 -nodes -sha1 -days 365 -key stunnel.key > stunnel.cert
Now combine these into a single file that stunnel will use for its SSL communication:
cat stunnel.key stunnel.cert > stunnel.pem
Create a config file for stunnel called dev_https with the following contents:
pid=
cert...
Long-lasting FB access-token for server to pull FB page info
...n to see that it is set to Expires: Never!
That should do it. You should now have a Facebook Page Access Token that doesn't expire, unless:
You change your Facebook account password
You lose admin access for the target page
You delete or de-authorize your Facebook App
Any of these will cause t...
Effects of the extern keyword on C functions
...ar.c.
Here is foo.c
#include <stdio.h>
volatile unsigned int stop_now = 0;
extern void bar_function(void);
int main(void)
{
while (1) {
bar_function();
stop_now = 1;
}
return 0;
}
Now, here is bar.c
#include <stdio.h>
extern volatile unsigned int stop_now;
void b...
How to get package name from anywhere?
...
This seems the most practical solution for me right now but it does require me to create a subclass of the activity... +1 for now.
– ef2011
Jul 5 '11 at 23:12
...
What is “loose coupling?” Please provide examples
...n to keep track of the items we'd have to change the Order class as well.
Now here's a slightly better way to do the same thing:
Less Coupled Example:
public class CartEntry
{
public float Price;
public int Quantity;
public float GetLineItemTotal()
{
return Price * Quanti...
Work on a remote project with Eclipse via SSH
...(Wait as the remote project is created.)
If done correctly, there should now be a new remote project accessible from the Project Explorer and other perspectives within eclipse. With the SSH connection set-up correctly passwords can be made an optional part of the normal SSH authentication process....