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What is the difference between & and && in Java?

...x != 0) evaluates to false the whole thing directly evaluates to false without evaluating the (1/x > 1). EDIT: exprA | exprB <-- this means evaluate exprA then evaluate exprB then do the |. exprA || exprB <-- this means evaluate exprA and only if this is false then evaluate exprB and do ...
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How can I convert string date to NSDate?

... let dateFormatter = NSDateFormatter() dateFormatter.dateFormat = /* find out and place date format from * http://userguide.icu-project.org/formatparse/datetime */ let date = dateFormatter.dateFromString(/* your_date_string */) For further ...
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JavaScript moving element in the DOM

...r you can no longer find the first and third by their ids and need to work out another way. My answer was only meant to illustrate the functionality of the methods to accomplish the requested task, not be a comprehensive solution to swapping the first and third divs in a set an arbitrary number of t...
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Failed to Attach to Process ID Xcode

...p backwards. Resetting the contents of the simulator fixes the problem without having to change the debugger. – ozz Oct 23 '12 at 22:51 2 ...
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Is there a CSS parent selector?

...It's most likely for compatibility with jQuery (so it can leverage qSA without modifications), and because the subject indicator syntax proved too confusing. – BoltClock♦ May 4 '14 at 14:28 ...
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How to avoid passing parameters everywhere in play2?

...eed adds some boilerplate on the calling sites. But you can reduce it (without losing static typing advantages). In Scala, I see two ways to achieve it: through actions composition or by using implicit parameters. In Java I suggest using the Http.Context.args map to store useful values and retrieve...
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Load different colorscheme when using vimdiff

...sole users (like myself), I found 'vividchalk' to be the best colorscheme (out of the default install set) for maintaining contrast between highlighted diffs and highlighted syntax, at least for shell scripts. A close second was 'evening.' Hope that helps. – Conrad Meyer ...
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Can hash tables really be O(1)?

... the right bucket, so for strings you need to do an O(m) traversal to find out if they are equal. – JeremyP May 5 '10 at 8:05 1 ...
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What is the scope of variables in JavaScript?

... variables in javascript? Do they have the same scope inside as opposed to outside a function? Or does it even matter? Also, where are the variables stored if they are defined globally? ...
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How to get all of the immediate subdirectories in Python

...ip('/') to remove trailing slashes. This way guarantees that you don't cut out any characters that are not forward slashes – Eliezer Miron Jul 7 '16 at 16:38 8 ...