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How to get memory available or used in C#
...ess and use:
proc.PrivateMemorySize64;
To get the private memory usage. For more information look at this link.
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Introducing FOREIGN KEY constraint may cause cycles or multiple cascade paths - why?
I've been wrestling with this for a while and can't quite figure out what's happening. I have a Card entity which contains Sides (usually 2) - and both Cards and Sides have a Stage. I'm using EF Codefirst migrations and the migrations are failing with this error:
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How to extract the first two characters of a string in shell scripting?
For example, given:
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JavaScript variable number of arguments to function
Is there a way to allow "unlimited" vars for a function in JavaScript?
11 Answers
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How to programmatically set style attribute in a view
...h a thing as a StateListDrawable which lets you define different drawables for each state the your Button can be in, whether focused, selected, pressed, disabled and so on.
For example, to get your button to change colour when it's pressed, you could define an XML file called res/drawable/my_button...
javascript i++ vs ++i [duplicate]
...and ++i is the value of the expression.
The value i++ is the value of i before the increment. The value of ++i is the value of i after the increment.
Example:
var i = 42;
alert(i++); // shows 42
alert(i); // shows 43
i = 42;
alert(++i); // shows 43
alert(i); // shows 43
The i-- and --i operator...
Efficiently test if a port is open on Linux?
...r because 0,1,2 are stdin, stdout, and stderr. 5 is sometimes used by Bash for child processes, so 3,4,6,7,8, and 9 should be safe.
As per the comment below, to test for listening on a local server in a script:
exec 6<>/dev/tcp/127.0.0.1/445 || echo "No one is listening!"
exec 6>&- # ...
Dynamically select data frame columns using $ and a character value
...e able to loop over each of them to extract that column from a data.frame. For example, consider the data set mtcars and some variable names stored in a character vector cols . When I try to select a variable from mtcars using a dynamic subset of cols , nether of these work
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Click through div to underlying elements
...o this.
Using pointer-events: none along with CSS conditional statements for IE11 (does not work in IE10 or below), you can get a cross browser compatible solution for this problem.
Using AlphaImageLoader, you can even put transparent .PNG/.GIFs in the overlay div and have clicks flow through to ...
CSS3 Rotate Animation
...ation:spin 4s linear infinite;
}
@-moz-keyframes spin { 100% { -moz-transform: rotate(360deg); } }
@-webkit-keyframes spin { 100% { -webkit-transform: rotate(360deg); } }
@keyframes spin { 100% { -webkit-transform: rotate(360deg); transform:rotate(360deg); } }
<img class="image" src="http://...