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How to disable Django's CSRF validation?

... If you just need some views not to use CSRF, you can use @csrf_exempt: from django.views.decorators.csrf import csrf_exempt @csrf_exempt def my_view(request): return HttpResponse('Hello world') You can find more examples and other scenarios in the Django documentation: https:/...
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How does this print “hello world”?

... 6 symbols apart from letters. With this codification scheme you can have all 26 (one case) english letters and 6 symbols (being space among them). Algorithm description The >>= 5 in the for-loop jumps from group to group, then the 5-bits group gets isolated ANDing the number with the mask ...
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How can I group data with an Angular filter?

...DATE: jsbin Remember the basic requirements to use angular.filter, specifically note you must add it to your module's dependencies: (1) You can install angular-filter using 4 different methods: clone & build this repository via Bower: by running $ bower install angular-filter from ...
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What does value & 0xff do in Java?

... that notation? x isn't a number or a hex number? – Callat Dec 5 '16 at 18:56 3 @KazRodgers - The...
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How to find whether or not a variable is empty in Bash

...variable is undefined and the set -u option (nounset) is activated. Almost all other answers to this question will fail with unbound variable in this case. – anol May 26 '15 at 16:29 ...
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Dynamic cell width of UICollectionView depending on label width

... You cannot imagine how I thank you! That really works. Now I only need to resolve [cell.myLabel sizeToFit] problem, because it appears in its full size only after scrolling. But I have not been even close to your solution. – pulp ...
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Retain precision with double in Java

...red as a binary representation of a fraction and a exponent. More specifically, a double-precision floating point value such as the double type is a 64-bit value, where: 1 bit denotes the sign (positive or negative). 11 bits for the exponent. 52 bits for the significant digits (the fractional par...
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How to print to console when using Qt

...is good enough to print to stderr, you can use the following streams originally intended for debugging: #include<QDebug> //qInfo is qt5.5+ only. qInfo() << "C++ Style Info Message"; qInfo( "C Style Info Message" ); qDebug() << "C++ Style Debug Message"; qDebug( "C Style Debug Me...
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“Least Astonishment” and the Mutable Default Argument

... Actually, this is not a design flaw, and it is not because of internals, or performance. It comes simply from the fact that functions in Python are first-class objects, and not only a piece of code. As soon as you get to think i...
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Get last element of Stream/List in a one-liner

...e for the general case: Stream<T> stream = ...; // sequential or parallel stream Optional<T> last = stream.reduce((first, second) -> second); This implementations works for all ordered streams (including streams created from Lists). For unordered streams it is for obvious reasons u...