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Sort array of objects by single key with date value
... use Array.sort.
Here's an example:
var arr = [{
"updated_at": "2012-01-01T06:25:24Z",
"foo": "bar"
},
{
"updated_at": "2012-01-09T11:25:13Z",
"foo": "bar"
},
{
"updated_at": "2012-01-05T04:13:24Z",
"foo": "bar"
}
]
arr.sort(function(a, b) {
v...
Build tree array from flat array in javascript
...on has :
id : a unique id,
parentId : the id of the parent node (which is 0 if the node is a root of the tree)
level : the level of depth in the tree
...
Implement Stack using Two Queues
...
Richard
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answered Mar 27 '09 at 2:17
SvanteSvante...
关于php的socket初探 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...erver Class
* By James.Huang <shagoo#gmail.com>
**/
set_time_limit(0);
class SocketServer
{
private static $socket;
function SocketServer($port)
{
global $errno, $errstr;
if ($port < 1024) {
die("Port must be a number which bi...
How to position a div in the middle of the screen when the page is bigger than the screen
...it at http://jsfiddle.net/XEUbc/1/
#mydiv {
position:fixed;
top: 50%;
left: 50%;
width:30em;
height:18em;
margin-top: -9em; /*set to a negative number 1/2 of your height*/
margin-left: -15em; /*set to a negative number 1/2 of your width*/
border: 1px solid #ccc;
...
C++ auto keyword. Why is it magic?
...r templates on any compiler that even sort of attempted to implement C++98/03. As such, adding support for auto was apparently fairly easy for essentially all the compiler teams--it was added quite quickly, and there seem to have been few bugs related to it either.
When this answer was originally w...
How to break nested loops in JavaScript? [duplicate]
...o break to a label, like so:
function foo ()
{
dance:
for(var k = 0; k < 4; k++){
for(var m = 0; m < 4; m++){
if(m == 2){
break dance;
}
}
}
}
share...
How can I check if a URL exists via PHP?
How do I check if a URL exists (not 404) in PHP?
22 Answers
22
...
What is more efficient? Using pow to square or just multiply it with itself?
... expression) \
double test##num(double b, long loops) \
{ \
double x = 0.0; \
\
boost::posix_time::ptime startTime = now(); \
for (long i=0; i<loops; ++i) \
{ \
x += expression; \
x += expression; \
x += expression; \
x += expression; \
x +=...