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What is the HTML tabindex attribute?
...portant than the first one. There are very few elements that are focusable by default (e.g. <a> and form controls). Developers very often add some JavaScript event handlers (like 'onclick') on not focusable elements (<div>, <span> and so on), and the way to make your interface be r...
How do I determine whether an array contains a particular value in Java?
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Creating then the collection is going to be dominated by code loading time (which is technically O(n) but practically constant).
– Tom Hawtin - tackline
Mar 7 '12 at 13:23
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How can I distinguish whether Switch,Checkbox Value is changed by user or programmatically (includin
How to implement method isNotSetByUser() ?
16 Answers
16
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ARC and bridged cast
...FTypeRef while transferring it over to ARC. This could also be represented by id someObj = (__bridge <NSType>) op; CFRelease(op);
(__bridge_retained <CFType>) op or alternatively CFBridgingRetain(op) is used to hand an NSObject over to CF-land while giving it a +1 retain count. You shoul...
Implementing Comments and Likes in database
.... and I wonder how Django ORM will handle to map it (or how I will do that by myself...but, that is the other problem ;) ) But, can you explain me, cause I think I do not understand it properly - what you have drawn for me (thanks!) is the third approach you mentioned?
– Kokos...
When should I choose Vector in Scala?
...tor. Specifically:
Updates at the head are slower than List (though not by as much as you might think)
Another downside before Scala 2.10 was that pattern matching support was better for List, but this was rectified in 2.10 with generalized +: and :+ extractors.
There is also a more abstract, ...
How do I navigate in the results of Diff
...it should show you the command shortcuts for doing page up/page down etc.
By default git looks at the $GIT_PAGER, then $PAGER environment variable to determine the program to be used for showing you the output of diff, log, show etc.
On new (linux) systems the default $PAGER used (even when it is ...
How to get these two divs side-by-side?
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Since div's by default are block elements - meaning they will occupy full available width, try using -
display:inline-block;
The div is now rendered inline i.e. does not disrupt flow of elements, but will still be treated as a block e...
What are the most interesting equivalences arising from the Curry-Howard Isomorphism?
...gramming life, and perhaps this contributes to my being utterly fascinated by it. It implies that for every programming concept there exists a precise analogue in formal logic, and vice versa. Here's a "basic" list of such analogies, off the top of my head:
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How do I disable a Pylint warning?
... with the given id(s). You can
# either give multiple identifier separated by comma (,) or put this option
# multiple time.
#enable=
# Disable the message, report, category or checker with the given id(s). You
# can either give multiple identifier separated by comma (,) or put this option
# multipl...