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What does map(&:name) mean in Ruby?
...oo method, and used the & to signify that it has a to_proc method that converts it into a Proc.
This is very useful when you want to do things point-free style. An example is to check if there is any string in an array that is equal to the string "foo". There is the conventional way:
["bar", "...
Get the current user, within an ApiController action, without passing the userID as a parameter
... AccountController added in a project is very likely a Mvc.Controller. To convert his answer for use in an ApiController change HttpContext.Current.GetOwinContext() to Request.GetOwinContext() and make sure you have added the following 2 using statements:
using Microsoft.AspNet.Identity;
using Mic...
How can I unit test Arduino code?
...Sim-based tests
There's a lot of discussion about what unit test means and I'm not
really trying to make an argument about that here. This post is not
telling you to avoid all practical testing on your ultimate target
hardware. I am trying to make a point about optimizing your
developmen...
What does threadsafe mean?
...ently I tried to Access a textbox from a thread (other than the UI thread) and an exception was thrown. It said something about the "code not being thread safe" and so I ended up writing a delegate (sample from MSDN helped) and calling it instead.
...
live output from subprocess command
..., I use subprocess.Popen to run the code, collect the output from stdout and stderr into a subprocess.PIPE --- then I can print (and save to a log-file) the output information, and check for any errors. The problem is, I have no idea how the code is progressing. If I run it directly from the c...
Windows service on Local Computer started and then stopped error
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I have found it very handy to convert your existing windows service to a console by simply changing your program with the following. With this change you can run the program by debugging in visual studio or running the executable normally. But it will als...
jQuery get values of checked checkboxes into array
...code, but they were either too complex or didn't do exactly want I wanted: Convert form data to JavaScript object with jQuery
Works but can be improved: only works on one-dimensional arrays and the resulting indexes may not be sequential. The length property of an array returns the next index numbe...
Twitter oAuth callbackUrl - localhost development
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Callback URL edited
http://localhost:8585/logintwitter.aspx
Convert to
http://127.0.0.1:8585/logintwitter.aspx
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Change the font of a UIBarButtonItem
...et the exclamation mark (!) after the font. The error message: "'_' is not convertible to 'String'" is not really helpful.
– Ciryon
Sep 3 '15 at 6:41
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Serializing with Jackson (JSON) - getting “No serializer found”?
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I am getting this error while converting ClientResponse to string using object mapper
– VdeX
May 24 '17 at 14:03
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