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Is the != check thread safe?
...ticular machine and a particular Java implementation, does not preclude it from happening in other circumstances.
Does this mean that a != a could return true.
Yes, in theory, under certain circumstances.
Alternatively, a != a could return false even though a was changing simultaneously.
C...
Accessing attributes from an AngularJS directive
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See section Attributes from documentation on directives.
observing interpolated attributes: Use $observe to observe the value changes of attributes that contain interpolation (e.g. src="{{bar}}"). Not only is this very efficient but it's also t...
How to use JUnit to test asynchronous processes
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EDIT Removed syncronized blocks around CountDownLatch thanks to comments from @jtahlborn and @Ring
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Async/await vs BackgroundWorker
...ow, you could use TPL instead:
var synchronizationContext = TaskScheduler.FromCurrentSynchronizationContext();
Task.Factory.StartNew(() =>
{
int i = 0;
// simulate lengthy operation
Stopwatch sw = Stopw...
Extending Angular Directive
...me, concatenated with Directive as the first argument, then we retrieve it from the callback parameter (which is an array of directives matching that name).
Once we got it, we can obtain its scope object and extend it as needed. Notice that all of this has to be done in the config block.
Some note...
Further understanding setRetainInstance(true)
...cause it does have some useful information, but sadly none of it is linked from setRetainInstance(). From the page about fragments
Note: Each fragment requires a unique identifier that the system can
use to restore the fragment if the activity is restarted (and which
you can use to capture t...
Test if a variable is a list or tuple
... certain type of object, it's that you artificially restrict your function from doing the right thing with unexpected object types that would otherwise do the right thing. If you have a final fallback that is not type-checked, you remove this restriction. It should be noted that too much type chec...
What is the equivalent of MATLAB's repmat in NumPy
...n the direction of columns, rows and out-of-plane dimension are being read from right to left. The resulting object has a different shape from Matlab. One can no longer assert that repmat and tile are equivalent instructions.
In order to get tile to behave like repmat, in Python one has to make s...
How to add an email attachment from a byte array?
... FWIW, Mono's Attachment class calls Dispose on the content stream, and from a quick test case, .NET 4.0 does the same. I'm not super-amused that this is the case, but there it is.
– Matt Enright
May 19 '11 at 22:12
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Python list subtraction operation
...] gives [1,1] So it is not really list substraction, it is more like "List from List X without elements from set Y".
– Alfred Zien
Feb 6 '16 at 10:25
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