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Is DateTime.Now the best way to measure a function's performance?
...tch.StartNew();
PerformWork();
sw.Stop();
Console.WriteLine("Time taken: {0}ms", sw.Elapsed.TotalMilliseconds);
Stopwatch automatically checks for the existence of high-precision timers.
It is worth mentioning that DateTime.Now often is quite a bit slower than DateTime.UtcNow due to the work tha...
Get the device width in javascript
...esktop browsers I use the following:
var width = (window.innerWidth > 0) ? window.innerWidth : screen.width;
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The new keyword “auto”; When should it be used to declare a variable type? [duplicate]
...;
auto s = x * x; //square
auto c = x * x * x; //cube
for(int i = 0; i < 5 ; i++ )
std::cout << s(i) << ", " << c(i) << std::endl;
Output:
0, 0
1, 1
4, 8
9, 27
16, 64
Now compare the above code with the following equivalent code which doesn't use auto:
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Most efficient way to determine if a Lua table is empty (contains no entries)?
...
Your code is efficient but wrong. (Consider {[false]=0}.) The correct code is
if next(myTable) == nil then
-- myTable is empty
end
For maximum efficiency you'll want to bind next to a local variable, e.g.,
...
local next = next
...
... if next(...) ...
...
Free XML Formatting tool [closed]
...Config\tidy\TIDYCFG.INI,
find the entry [Tidy: Reindent XML] and add wrap:0 so that it looks like this:
[Tidy: Reindent XML]
input-xml: yes
indent:yes
wrap:0
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A generic list of anonymous class
In C# 3.0 you can create anonymous class with the following syntax
22 Answers
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How to make code wait while calling asynchronous calls like Ajax [duplicate]
...re the callbacks are inappropriate, for example: webview.clearData({since: 0}, clearDataType, function(){ ... // recreate fresh webview }); will pose a resource hog (chrome will create a new copy of local storage waiting until old one will be freed from references from inside callback which will nev...
List of lists into numpy array
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205
If your list of lists contains lists with varying number of elements then the answer of Ignacio...
Serializing object that contains cyclic object value
...l && typeof val == "object") {
if (seen.indexOf(val) >= 0) {
return;
}
seen.push(val);
}
return val;
});
http://jsfiddle.net/mH6cJ/38/
As correctly pointed out in other comments, this code removes every "seen" object, not only "recursive" one...
PHP: How to check if image file exists?
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