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When is JavaScript synchronous?
... It won't interrupt any other code that's currently running.
JavaScript timers operate with this same kind of callback.
Describing JavaScript as asynchronous is perhaps misleading. It's more accurate to say that JavaScript is synchronous and single-threaded with various callback mechanisms.
jQuer...
ASP.NET MVC How to convert ModelState errors to json
How do you get a list of all ModelState error messages? I found this code to get all the keys:
( Returning a list of keys with ModelState errors )
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How to avoid isset() and empty()
...applications that throw a lot of "xyz is undefined" and "undefined offset" messages when running on the E_NOTICE error level, because the existence of variables is not explicitly checked using isset() and consorts.
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What's the difference between unit, functional, acceptance, and integration tests? [closed]
...ce, and integration testing (and any other types of tests that I failed to mention)?
8 Answers
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How do I run a Python program?
...asking!
Command-line Python in Windows:
Save your python code file somewhere, using "Save" or "Save as" in your editor. Lets call it 'first.py' in some folder, like "pyscripts" that you make on your Desktop.
Open a prompt (a Windows 'cmd' shell that is a text interface into the computer):
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Java equivalent to #region in C#
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There's no such standard equivalent. Some IDEs - Intellij, for instance, or Eclipse - can fold depending on the code types involved (constructors, imports etc.), but there's nothing quite like #region.
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Download data url file
...re running a Java server-side component, you can use this: github.com/suprememoocow/databounce. It uses a Servlet to 'bounce' the data from client. It would be fairly easy to perform the same trick in other server side technologies, such as Python, ASP.NET etc
– Andrew Newdigat...
Removing duplicate rows in Notepad++
...ovided you wanted to sort by line, and remove the duplicate lines at the same time.
To install the TextFX in the latest release of Notepad++ you need to download it from here: https://sourceforge.net/projects/npp-plugins/files/TextFX
The TextFX plugin used to be included in older versions of Notepad...
How to show first commit by 'git log'?
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Short answer
git rev-list --max-parents=0 HEAD
(from tiho's comment. As Chris Johnsen notices, --max-parents was introduced after this answer was posted.)
Explanation
Technically, there may be more than one root commit. This happens when multiple previously independent histories are me...
socket.io rooms or namespacing?
I am investigating nodejs/socket.io for real time chat, and I need some advice for implementing rooms.
5 Answers
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