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What is the correct way to represent null XML elements?
...l is the correct way to represent a value such that:
When the DOM Level 2 call getElementValue() is issued, the NULL value is returned.
xsi:nil is also used to indicate a valid element with no content even if that elements content type normally doesn't allow empty elements.
If an empty tag is used,...
Group by month and year in MySQL
...y year and month. Lets say you want to order from this year and this month all the way back to 12 month
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ImportError: No module named site on Windows
I am trying to install Python for the first time. I downloaded the following installer from the Python website:
Python 2.7.1 Windows Installer (Windows binary -- does not include source) . I then ran the installer, selected 'All Users' and all was fine. I installed Python into the default location:...
What is the difference between the dot (.) operator and -> in C++? [duplicate]
...force this with parenthesis:
(*pointervariable).foo
But typing the ()'s all the time is hard, so they developed -> as a shortcut to say the same thing. If you are accessing a property of an object or object reference, use . If you are accessing a property of an object through a pointer, use -...
How to use java.String.format in Scala?
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While all the previous responses are correct, they're all in Java. Here's a Scala example:
val placeholder = "Hello %s, isn't %s cool?"
val formatted = placeholder.format("Ivan", "Scala")
I also have a blog post about making for...
How to disable HTML button using JavaScript?
I’ve read that you can disable (make physically unclickable) an HTML button simply by appending disable to its tag, but not as an attribute, as follows:
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Add table row in jQuery
...nstead of $('#myTable > tbody:last').
– Erik Töyrä Silfverswärd
Jan 25 '12 at 12:48
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Using CSS to affect div style inside iframe
... your domain, you can control it, if not, you're locked out. This prevents all kinds of Iframe-based page hijacking.
– Diodeus - James MacFarlane
Dec 29 '09 at 16:08
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Using Html.ActionLink to call action on different controller
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The overload of ActionLink are really clumsy. The whole point of accepting an 'object routeValues' instead of a RouteValueCollection is to reduce the amount of typing. However, you end up having to type an extra null. Non-intuitive and counter productive ......
AWK: Access captured group from line pattern
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I prefer 'perl -n -p -e...' over awk for almost all use cases, since it is more flexible, more powerful and has a saner syntax in my opinion.
– Peter Tillemans
Jun 23 '11 at 18:39
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