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Importance of varchar length in MySQL table
...re memory than you have to. This affects cache efficiency, sorting speed, etc.
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How can I parse a JSON file with PHP? [duplicate]
...f an object. And with that array, you can do whatever you want, like loops etc.
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Find unused code [closed]
...e of the results is "Unused Symbols". This will show you classes, methods, etc., that aren't used.
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Why should I use Deque over Stack?
...stent. Deque exposes a set of operations which is all about being able to fetch/add/remove items from the start or end of a collection, iterate etc - and that's it. There's deliberately no way to access an element by position, which Stack exposes because it's a subclass of Vector.
Oh, and also Stac...
How can I get the full/absolute URL (with domain) in Django?
...y when you don't have access to HttpRequest object. e.g. in tasks, signals etc.
– Arsham
Nov 11 '14 at 10:04
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Difference between two lists
...values being compared are of base data types, such as int, string, decimal etc.
Otherwise the comparison will be made by object address, which is probably not what you want... In that case, make your custom objects implement IComparable (or implement a custom IEqualityComparer and pass it to the Ex...
Implications of foldr vs. foldl (or foldl')
...gregate, Smalltalk's inject:into:, PHP's array_reduce, Mathematica's Fold, etc. Common Lisp's reduce defaults to left fold but there's an option for right fold.
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Aborting a shell script if any command returns a non-zero value?
...ason, including a normal end, interrupts, an exit caused by the -e option, etc.
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Didn't Java once have a Pair class? [duplicate]
...n't have any special semantics and you could as well need a Tripplet class etc. The developers of Java thus didn't include a generic Pair but suggest to write special classes (which isn't that hard) like Point(x,y), Range(start, end) or Map.Entry(key, value).
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How to position a table at the center of div horizontally & vertically
... Yeah, I figured it out.... Please elaborate javascript, jQuery, AJAX etc so that others can understand
– Ajay Kulkarni
Sep 11 '15 at 12:59
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