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UIView frame, bounds and center
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I found this image most helpful for understanding frame, bounds, etc.
Also please note that frame.size != bounds.size when the image is rotated.
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How can I split a shell command over multiple lines when using an IF statement?
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For Windows/WSL/Cygwin etc users:
Make sure that your line endings are standard Unix line feeds, i.e. \n (LF) only.
Using Windows line endings \r\n (CRLF) line endings will break the command line break.
This is because having \ at the end of a...
Why isn't there a Guid.IsNullOrEmpty() method
... to know whether you are working with Guid? or Guid (nice for re-factoring etc.).
/// <summary>
/// Determines if Guid is Guid.Empty
/// </summary>
public static bool IsNullOrEmpty(this Guid guid)
{
return (guid == Guid.Empty);
}
Now you could use someGuid.IsNullOrEmpty(); in all ca...
How to not run an example using roxygen2?
...sulting line of gctemplate is to indicate the
#' ## (conditonal, partial, etc.) G-causality from variable 1 to variables 2 and 5
#' ## conditonal on variables 3 and 4.
#' # gctemplate(5,1,2)
#' ## The number of all G-causalities to be searched in the above pattern.
#' #dim(gctemplate(5,1,2))[[1]]
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How to git-cherry-pick only changes to certain files?
...y chunk of continuous code change which you can then signal y (Yes) n (No) etc for each chunk of code.
The -p or patch option works for a variety of commands in git including git stash save -p which allows you to choose what you want to stash from your current work
I sometimes use this technique w...
How can I find where I will be redirected using cURL?
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Oh, so you don't actually want to fetch the page? Just find out the location? In that case, I'd suggest the tactic used here: zzz.rezo.net/HowTo-Expand-Short-URLs.html -- basically just grab the header from the page that redirects, and grab the Location: heade...
Hash and salt passwords in C#
... | ((uint)(buffer[offset + 3]));
}
Note this requires Microsoft.AspNetCore.Cryptography.KeyDerivation nuget package installed which requires .NET Standard 2.0 (.NET 4.6.1 or higher). For earlier versions of .NET see the Crypto class from Microsoft's System.Web.Helpers library.
Update Nov 201...
Should I be concerned about excess, non-running, Docker containers?
...which are required to run that piece of software (for example mysql, redis etc.) with basic configurations in a container environment.
When you create a container using an image, a small section of resources from your system are isolated with the help of namespacing and cgroups, and then the files i...
MySQL CONCAT returns NULL if any field contain NULL
...se the following:
SELECT CONCAT_WS("",affiliate_name,':',model,'-',ip,... etc)
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Cosmic Rays: what is the probability they will affect a program?
... Makers go to huge lengths to make sure the silicon, solder, encapsulation etc doesn't contain any alpha or beta emitters.
– Martin Beckett
Apr 6 '10 at 3:12
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