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What is the fastest or most elegant way to compute a set difference using Javascript arrays?
...ty methods.)
Performance: Testing with
var a = [], b = [];
for (var i = 100000; i--; ) {
if (i % 2 !== 0) a.push(i);
if (i % 3 !== 0) b.push(i);
}
gives two sets with 50,000 and 66,666 elements. With these values A-B takes about 75ms, while union and intersection are
Stop setInterval
...;
$(document).on('ready',function(){
interval = setInterval(updateDiv,3000);
});
function updateDiv(){
$.ajax({
url: 'getContent.php',
success: function(data){
$('.square').html(data);
},
error: function(){
clearInterval(interval); // ...
When should I use a struct instead of a class?
...as ref parameters whenever it's reasonable to do so. Pass a struct with 4,000 fields as a ref parameter to a method which changes one will be cheaper than passing a struct with 4 fields by value to a method which returns modified version.
– supercat
Jan 2 '13 ...
ObservableCollection not noticing when Item in it changes (even with INotifyPropertyChanged)
...into it further.
– belugabob
Jul 6 '11 at 11:45
10
What happen if I invoke _contentList.Clear()? ...
How to convert a column number (e.g. 127) into an Excel column (e.g. AA)
...
Example: =SUBSTITUTE(TEXT(ADDRESS(1,1000,4),""),"1","")
– Dolph
Oct 13 '10 at 18:55
...
Embedding ads on Android app?
... users would be upset, but I have not received one complaint from over 500,000 active installations.
The only permission that you need to add for either ad SDK to work is the android.permission.INTERNET permission.
Admob is open for anyone above the age of 18 to use, just download the SDK and se...
Is R's apply family more than syntactic sugar?
... |
edited May 23 '17 at 11:46
Community♦
111 silver badge
answered Feb 16 '10 at 20:15
...
How many levels of pointers can we have?
...ut of interest I ran this with g++ 4.1.2, and it worked with size up to 20,000. Compile was pretty slow though, so I didn't try higher. So I'd guess g++ doesn't impose any limit either. (Try setting size = 10 and looking in ptr.cpp if it's not immediately obvious.)
g++ create.cpp -o create ; ./crea...
How to detect if a property exists on an ExpandoObject?
... The debugger being attached and Console.WriteLine are the slow bits. 10,000 iterations here takes less than 200ms (with 2 exceptions per iteration). The same test with no exceptions takes a handful of milliseconds. That means if you expect your usage of this code to only rarely be missing a pr...
One class per file rule in .NET? [closed]
...
+1,000. Understanding the rationale for best practices and thinking twice before violating them is great. Slavish adherence is evil.
– dsimcha
Mar 12 '10 at 19:06
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