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Understanding ibeacon distancing

...t 1 meter away. Each beacon must be calibrated with this txPower value to allow accurate distance estimates. While the distance estimates are useful, they are not perfect, and require that you control for other variables. Be sure you read up on the complexities and limitations before misusing thi...
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Deep copying an NSArray

Is there any built-in function that allows me to deep copy an NSMutableArray ? 6 Answers ...
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Finding local maxima/minima with Numpy in a 1D numpy array

... If you are looking for all entries in the 1d array a smaller than their neighbors, you can try numpy.r_[True, a[1:] < a[:-1]] & numpy.r_[a[:-1] < a[1:], True] You could also smooth your array before this step using numpy.convolve(). I...
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Explain ExtJS 4 event handling

...escribing DOM elements' event handling. DOM node event handling First of all you wouldn't want to work with DOM node directly. Instead you probably would want to utilize Ext.Element interface. For the purpose of assigning event handlers, Element.addListener and Element.on (these are equivalent) we...
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Why is using 'eval' a bad practice?

...d eval have nothing to do with each other. An application that's fundamentally mis-designed is fundamentally mis-designed. eval is no more the root cause of bad design than division by zero or attempting to import a module which is known not to exist. eval isn't insecure. Applications are insecu...
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What is the need of JSF, when UI can be achieved with JavaScript libraries such as jQuery and Angula

...amples. If you study those examples closely, then you'll see that you basically need a simple Javabean class as model and a XHTML file as view. Note that you should not see JSF as replacement of alone HTML/CSS/JS, you should also take the server side part into account (specifically: JSP/Servlet). JS...
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Is there a way to list task dependencies in Gradle?

... you can use the --all flag to get a more detailed listing of the available tasks and the task dependencies gradle tasks --all EDIT: as noted by Radim in the comments, this command does not report dependencies, for gradle 3.3 and newer (see ...
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How do I delete an Azure storage account containing a leased blob?

...unt can be deleted. Notes: This applies even if you've already deleted all of your Virtual Machines and it shows 0; there still will be artifacts under the disks tab. Disks are detached from a deleted VM asynchronously, it may take a few minutes after the VM is deleted for this field to clear up...
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What's the difference between URI.escape and CGI.escape?

... There were some small differences, but the important point is that URI.escape has been deprecated in Ruby 1.9.2... so use CGI::escape or ERB::Util.url_encode. There is a long discussion on ruby-core for those interested which also mentions WE...
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How do I check if an element is hidden in jQuery?

... I actually found that the reverse logic words better: !$('selector').is(':hidden'); for some reason. Worth a try. – Kzqai Jan 5 '12 at 15:36 ...