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Java HashMap performance optimization / alternative
...or every object:
public int hashCode() {
// assume that both a and b are sorted
return a[0] + powerOf52(a[1], 1) + powerOf52(b[0], 2) + powerOf52(b[1], 3) + powerOf52(b[2], 4);
}
public static int powerOf52(byte b, int power) {
int result = b;
for (int i = 0; i < p...
Creating a textarea with auto-resize
...
This works for me (Firefox 3.6/4.0 and Chrome 10/11):
var observe;
if (window.attachEvent) {
observe = function (element, event, handler) {
element.attachEvent('on'+event, handler);
};
}
else {
observe = function (element, event...
How do I check in JavaScript if a value exists at a certain array index?
... element with index i is defined to be part of the array if i is between 0 and array.length - 1 inclusive. If i is not in this range it's not in the array.
So by concept, arrays are linear, starting with zero and going to a maximum, without any mechanism for having "gaps" inside that range where n...
When should I use malloc in C and when don't I?
I understand how malloc() works. My question is, I'll see things like this:
6 Answers
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How to submit a form using PhantomJS
... tool btw!) to submit a form for a page that I have login credentials for, and then output the content of the destination page to stdout. I'm able to access the form and set its values successfully using phantom, but I'm not quite sure what the right syntax is to submit the form and output the conte...
optional parameters in SQL Server stored proc?
I'm writing some stored procs in SQL Server 2008, and wondered if the concept of optional input parameters is possible here?
...
jQuery .hasClass() vs .is()
...f determining whether an element is assigned a class, from a performance standpoint?
4 Answers
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Wget output document and headers to STDOUT
I'm trying to output document body and its headers to stdout with wget by wget -S -O - http://google.com
5 Answers
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unsigned APK can not be installed
...people for testing.
I have installed it on my Desire directly from eclipse and it works fine.
7 Answers
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PHP namespaces and “use”
I am having a little trouble with namespaces and the use statements.
2 Answers
2
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