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Should all jquery events be bound to $(document)?
...le, if you want to intercept key events on an input control and block invalid keys from being entered into the input control, you cannot do that with delegated event handling because by the time the event bubbles up to the delegated handler, it has already been processed by the input control and it'...
When exactly is it leak safe to use (anonymous) inner classes?
I have been reading some articles on memory leaks in Android and watched this interesting video from Google I/O on the subject .
...
Scala 2.8 breakOut
...he first is your function and the second is an implicit. If you do not provide that implicit, Scala will choose the most specific one available.
About breakOut
So, what's the purpose of breakOut? Consider the example given for the question, You take a list of strings, transform each string into a...
What is the combinatory logic equivalent of intuitionistic type theory?
...et Type Theory
For completeness' sake, I'll present the rules. Context validity just says you can build contexts from empty by adjoining fresh variables inhabiting Sets.
G |- valid G |- S : Set
-------------- ----------------------------- x fresh for G
. |- valid ...
How to profile a bash shell script slow startup?
... is an octal tab character.
You should get a trace log in /tmp/bashstart.PID.log that shows the seconds.nanoseconds timestamp of each command that was executed. The difference from one time to the next is the amount of time that the intervening step took.
As you narrow things down, you can move se...
My Understanding of HTTP Polling, Long Polling, HTTP Streaming and WebSockets
...
There are more differences than the ones you have identified.
Duplex/directional:
Uni-directional: HTTP poll, long poll, streaming.
Bi-direcitonal: WebSockets, plugin networking
In order of increasing latency (approximate):
WebSockets
Plugin networking
HTTP streaming
...
What's the difference between a continuation and a callback?
...e of the tail call).
Bonus: Proceeding to continuation passing style. Consider the following program:
console.log(pythagoras(3, 4));
function pythagoras(x, y) {
return x * x + y * y;
}
Now if every operation (including addition, multiplication, etc.) were written in the form of...
How can I link to a specific glibc version?
When I compile something on my Ubuntu Lucid 10.04 PC it gets linked against glibc. Lucid uses 2.11 of glibc. When I run this binary on another PC with an older glibc, the command fails saying there's no glibc 2.11...
...
File I/O in Every Programming Language [closed]
... to reopen the file before each operation. You can write the whole code inside one with block.
with open('fileio.txt', 'w+') as f:
f.write('hello')
f.write('\nworld')
s = f.readlines()[1]
print(s)
I used three with blocks to emphsize the difference between the three operations:
write ...
What would cause an algorithm to have O(log n) complexity?
...t a log term to show up in big-O notation. Here are a few:
Repeatedly dividing by a constant
Take any number n; say, 16. How many times can you divide n by two before you get a number less than or equal to one? For 16, we have that
16 / 2 = 8
8 / 2 = 4
4 / 2 = 2
2 / 2 = 1
Notice that this...