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When is it better to use String.Format vs string concatenation?
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answered Nov 17 '08 at 21:22
Jon SkeetJon Skeet
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Javascript Shorthand for getElementById
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answered Jun 18 '11 at 20:44
user113716user113716
291k5959 gold badges425425 silver badges431431 bronze badges
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Easiest way to flip a boolean value?
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+500
You can flip a value like so:
myVal = !myVal;
so your code would shorten down to:
switch(wParam) {
case VK_F11:
flipVal =...
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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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...
List of tables, db schema, dump etc using the Python sqlite3 API
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107
You can fetch the list of tables and schemata by querying the SQLITE_MASTER table:
sqlite> ...
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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Most efficient way to determine if a Lua table is empty (contains no entries)?
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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.,
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local next = next
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... if next(...) ...
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Sublime Text 2 - Show file navigation in sidebar
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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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