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Checking if a variable is an integer
...is_a? method
>> 1.is_a? Integer
=> true
>> "dadadad@asdasd.net".is_a? Integer
=> false
>> nil.is_a? Integer
=> false
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How can I return NULL from a generic method in C#?
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In .NET an enum is a very thin (and rather leaky) wrapper around an integer type. The convention is to use zero for your "default" enum value.
– Mike Chamberlain
Mar 5 '12 at 3:53
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Visual Studio: Is there a way to collapse all items of Solution Explorer?
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There's a macro at http://geekswithblogs.net/scottkuhl/archive/2007/04/09/111195.aspx for Visual Studio 2005.
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View HTTP headers in Google Chrome?
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I'm not sure about your exact version, but Chrome has a tab "Network" with several items and when I click on them I can see the headers on the right in a tab.
Press F12 on windows or ⌥⌘I on a mac to bring up the Chrome developer tools.
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In php, is 0 treated as empty?
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http://php.net/empty
The following things are considered to be empty:
"" (an empty string)
0 (0 as an integer)
0.0 (0 as a float)
"0" (0 as a string)
NULL
FALSE
array() (an empty array)
var $var; (a variable de...
Rotating x axis labels in R for barplot
...el text perpendicular to axis
It is written here: http://www.statmethods.net/graphs/bar.html
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How can I round down a number in Javascript?
...converts to a 32-bit integer, truncating; Math.floor rounds down. jsfiddle.net/minitech/UVG2w
– Ry-♦
Sep 19 '12 at 14:16
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Javascript/jQuery: Set Values (Selection) in a multiple Select
... + e + "']").prop("selected", true);
});
Working Example http://jsfiddle.net/McddQ/1/
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Replace String in all files in Eclipse
...er
You can find more details in my blog post: http://blog.simplyadvanced.net/android-how-to-findreplace-in-multiple-files-using-eclipse/
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Get name of caller function in PHP?
...ify: "class", "function", "line", "class", etc.) - options see: http://php.net/manual/en/function.debug-backtrace.php
*/
function getCaller($what = NULL)
{
$trace = debug_backtrace();
$previousCall = $trace[2]; // 0 is this call, 1 is call in previous function, 2 is caller of that function
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