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How to find the 'sizeof' (a pointer pointing to an array)?
...k is the one mentioned by Zan, which is to stash the size somewhere. For example, if you're dynamically allocating the array, allocate a block one int bigger than the one you need, stash the size in the first int, and return ptr+1 as the pointer to the array. When you need the size, decrement the ...
Measuring the distance between two coordinates in PHP
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Not long ago I wrote an example of the haversine formula, and published it on my website:
/**
* Calculates the great-circle distance between two points, with
* the Haversine formula.
* @param float $latitudeFrom Latitude of start point in [deg de...
Python __str__ and lists
...omatically call the toString() method on each object inside the List. For example, if my list contains objects o1, o2, and o3, list.toString() would look something like this:
...
How can I check which version of Angular I'm using?
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Edit: When this answer was written, there was only AngularJS 1.x. Look in the answers below for Angular versions >= 2.
AngularJS does not have a command line tool.
You can get the version number from the JavaScript file itself.
Header of the current angular.js:
/**
* @license An...
How to hide element using Twitter Bootstrap and show it using jQuery?
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The right answer
Bootstrap 4.x
Bootstrap 4.x uses the new .d-none class. Instead of using either .hidden, or .hide if you're using Bootstrap 4.x use .d-none.
<div id="myId" class="d-none">Foobar</div>
To show it: $("#myId").removeClass('...
Why (0-6) is -6 = False? [duplicate]
...the same address with CPython, thus the is test passes.
This artifact is explained in detail in http://www.laurentluce.com/posts/python-integer-objects-implementation/, and we could check the current source code in http://hg.python.org/cpython/file/tip/Objects/longobject.c.
A specific structure...
Prevent double curly brace notation from displaying momentarily before angular.js compiles/interpola
...ts to load, there can be a good amount of time where the literal {{stringExpression}} in the markup are displayed, then disappear once angular is done with it's compilation/interpolation of the document.
...
Internet Explorer 11 disable “display intranet sites in compatibility view” via meta tag not working
...e below html5 doctype and edge compatibility meta tag to force Internet Explorer to not emulate an older browser version, and this has worked ok.
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How to convert a Django QuerySet to a list
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You could do this:
import itertools
ids = set(existing_answer.answer.id for existing_answer in existing_question_answers)
answers = itertools.ifilter(lambda x: x.id not in ids, answers)
Read when QuerySets are evaluated and note that it is not good to load the whole res...
RegEx match open tags except XHTML self-contained tags
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