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Static member initialization in a class template
...: doesn't it violate the one definition rule ?
– Alexandre C.
Jul 12 '10 at 15:49
7
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How to use android emulator for testing bluetooth application?
...ng. The code is working fine for real devices, but I want to run it on the Android Emulator. How can I use the emulator for bluetooth testing?
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Cost of exception handlers in Python
...nt division or modulo by zero
So, as expected, not having any exception handler is slightly faster (but blows up in your face when the exception happens), and try/except is faster than an explicit if as long as the condition is not met.
But it's all within the same order of magnitude and unlikel...
What is the difference between the hidden attribute (HTML5) and the display:none rule (CSS)?
...rtaain cases you don't want it to be a part of the visual experience then handle it at the cosmetic layer. Bear in mind that some agents attempt to parse CSS and if they determine that something wouldn't be SEEN then they don't output it at all. I think this is aberrant behavior but it can help to k...
Is there a “default” MIME type?
...eally add anything over this, except to confuse clients who don't support random unofficial MIME types. Ditto for application/binary; it's just a non-standard way of restating "octet-stream".
This is the answer to "What can I put in the Content-Type: header if I can't find an existing content type...
Are GUID collisions possible?
...with the same GUID. I know that microsoft uses an algorithm to generate a random GUID that has an extremely low chance of causing collisons, but is a collision still possible?
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What does the '.' (dot or period) in a Go import statement do?
In the Go tutorial, and most of the Go code I've looked at, packages are imported like this:
3 Answers
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Check a collection size with JSTL
...r Facelets:
<... xmlns:fn="http://java.sun.com/jsp/jstl/functions">
And use like this in your page:
<p>The length of the companies collection is: ${fn:length(companies)}</p>
So to test with length of a collection:
<c:if test="${fn:length(companies) gt 0}">
</c:if>
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git replace local version with remote version
How can I tell git to ignore my local file and take the one from my remote branch without trying to merge and causing conflicts?
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JavaScript get element by name
...rror is because document.getElementsByName returns a NodeList of elements. And a NodeList of elements does not have a .value property.
Use this instead:
document.getElementsByName("acc")[0].value
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