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Difference between $(document.body) and $('body')
I am a jQuery beginner and while going through some code examples I found:
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NSObject +load and +initialize - What do they do?
I'm interested in understanding the circumstances leading a developer to override +initialize or +load. Documentation makes it clear these methods are called for you by the Objective-C runtime, but that's really all that is clear from the documentation of those methods. :-)
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Regex empty string or email
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This regex pattern will match an empty string:
^$
And this will match (crudely) an email or an empty string:
(^$|^.*@.*\..*$)
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Homebrew install specific version of formula?
...en two installed versions. (*)
If you have been using homebrew for longer and never removed older versions (using, for example brew cleanup), chances are that some older version of your program may still be around. If you want to simply activate that previous version, brew switch is the easiest way...
Getting URL hash location, and using it in jQuery
I'd like to get the value after a hash in the URL of the current page and then be able to apply this in a new function... eg.
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How does Junit @Rule work?
...n a more generic way.
For instance, ExternalResource executes code before and after a test method, without having to use @Before and @After. Using an ExternalResource rather than @Before and @After gives opportunities for better code reuse; the same rule can be used from two different test classes....
Window vs Page vs UserControl for WPF navigation?
...for web-based systems like an XBAP, where you have a single browser window and different pages can be hosted in that window. It can also be used in Navigation Applications like sellmeadog said.
A UserControl is a reusable user-created control that you can add to your UI the same way you would add a...
SignalR: Why choose Hub vs. Persistent Connection?
I've been searching and reading up on SignalR recently and, while I see a lot of explanation of what the difference is between Hubs and Persistent Connections I haven't been able to get my head around the next level, which is why would I choose one approach over the other?
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Secret copy to clipboard JavaScript function in Chrome and Firefox?
...ing about function not defined, so it's definitely not a browser function, and cannot be used in normal JavaScript files. The following functions also seems to work in the JavaScript console, after playing around with it a bit:
clear()
profile()
Running these in the Chrome console reveals th...
Linq to SQL how to do “where [column] in (list of values)”
I have a function where I get a list of ids, and I need to return the a list matching a description that is associated with the id. E.g.:
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