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Evaluate if list is empty JSTL
...nctions" prefix="fn" %>
<c:if test="${fn:length(list) > 0}">
And here's the tag documentation.
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Toggle button using two image on different state
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Do this:
<ToggleButton
android:id="@+id/toggle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/check" <!--check.xml-->
android:layout_margin="10dp"
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Histogram Matplotlib
... that is already in the histogram format, so I have the center of the bins and the number of events per bin. How can I now plot is as a histogram. I tried just doing
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AWS S3: how do I see how much disk space is using
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AWS Cloudwatch now has a metric for bucket size and number of objects that is updated daily. About time! aws.amazon.com/blogs/aws/…
– cudds
Jul 28 '15 at 23:13
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Is it safe to delete an object property while iterating over them?
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The ECMAScript 5.1 standard section 12.6.4 (on for-in loops) says:
Properties of the object being enumerated may be deleted during enumeration. If a property
that has not yet been visited during enumeration is deleted, then it will not be ...
In Scala, what exactly does 'val a: A = _' (underscore) mean?
...default value of the type A. For example, the default value of an Int is 0 and the default value of a reference type is null.
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Why is the use of tuples in C++ not more common?
...obody seem to use tuples in C++, either the Boost Tuple Library or the standard library for TR1? I have read a lot of C++ code, and very rarely do I see the use of tuples, but I often see lots of places where tuples would solve many problems (usually returning multiple values from functions).
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Android RelativeLayout programmatically Set “centerInParent”
... RelativeLayout.TRUE);
positiveButton.setLayoutParams(layoutParams);
add android:configChanges="orientation|screenSize" inside your activity in your manifest
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How to create an exit message
Is there a one line function call that quits the program and displays a message? I know in Perl it's as simple as:
4 Answer...
How to write a JSON file in C#?
...that:
Json.NET has always been memory efficient, streaming the reading and writing large documents rather than loading them entirely into memory, but I was able to find a couple of key places where object allocations could be reduced...... (now) Json.Net (6.0) allocates 8 times less memory than ...