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How to check an Android device is HDPI screen or MDPI screen?

... The below answer is now the above answer, need to be more generic ;) – Neil Oct 3 '12 at 11:58 ...
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Saving a Numpy array as an image

... @TomášGavenčiak - scipy.misc.imsave is now deprecated in the newer versions of Scipy. An alternative a few comments below is to use imageio.imwrite('image_file.jpg', array) – Psi-Ed May 3 at 6:17 ...
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PHP mkdir: Permission denied problem

... I know this is an old thread, but it needs a better answer. You shouldn't need to set the permissions to 777, that is a security problem as it gives read and write access to the world. It may be that your apache user does not ha...
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Import a file from a subdirectory?

... community has produced the PSR-4 standard and Composer implements it, and nowadays nobody has to worry about that. And no stupid hardcoded __init__ files (but if you want it, just register an autoloading hook ! This is the difference between hacky and hackable). – Morgan Touve...
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Application not picking up .css file (flask/python)

... "{{ url_for('static',filename='styles/mainpage.css') }}"> Flask will now look for the css file under static/styles/mainpage.css share | improve this answer | follow ...
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Using PUT method in HTML form

...t either (with a slight exception of XHTML 2, but that's an obsolete draft now). – hakre Nov 8 '11 at 17:27 ...
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Using braces with dynamic variable names in PHP

...me in some cases. In PHP7, dynamic variables, properties, and methods will now be evaluated strictly in left-to-right order, as opposed to the mix of special cases in PHP5. The examples below show how the order of evaluation has changed. Case 1 : $$foo['bar']['baz'] PHP5 interpetation : ${$foo['bar...
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Sort Go map values by keys

... Ah, okay. Thank you for teaching me. Now, it is printing all even then all odd. play.golang.org/p/K2y3m4Zzqd How can I get it to alternate so that it is in order? – gramme.ninja Apr 28 '14 at 2:20 ...
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Are duplicate keys allowed in the definition of binary search trees?

...se problems. Imagine your tree rule is this: left < root <= right Now imagine a simple tree whose root is 5, left child is nil, and right child is 5. If you do a left rotation on the root you end up with a 5 in the left child and a 5 in the root with the right child being nil. Now somethi...
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How do I do base64 encoding on iOS?

...s) of data objRawData += 3; intLength -= 3; } // now deal with the tail end of things if (intLength != 0) { *objPointer++ = _base64EncodingTable[objRawData[0] >> 2]; if (intLength > 1) { *objPointer++ = _base64EncodingTable[((objRawD...