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Merging objects (associative arrays)
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with jquery you can call $.extend
var obj1 = {a: 1, b: 2};
var obj2 = {a: 4, c: 110};
var obj3 = $.extend(obj1, obj2);
obj1 == obj3 == {a: 4, b: 2, c: 110} // Pseudo JS
(assoc. arrays are objects in js)
look here: http://api.jquery.com/jQu...
Custom exception type
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This will not allow you stack traces unless you inherit from Error
– Luke H
Jul 30 '14 at 19:53
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How to print a string in fixed width?
I have this code (printing the occurrence of the all permutations in a string)
5 Answers
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Extract subset of key-value pairs from Python dictionary object?
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If you're using Python 3, and you only want keys in the new dict that actually exist in the original one, you can use the fact to view objects implement some set operations:
{k: bigdict[k] for k in bigdict.keys() & {'l', 'm', 'n'}}
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How to iterate for loop in reverse order in swift?
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SuragchSuragch
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Proper way to handle multiple forms on one page in Django
...ta. Include some hidden inputs if your froms don't have unique fields with all possible values being not empty.
– Denis Otkidach
Oct 24 '09 at 16:39
14
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How to detect total available/free disk space on the iPhone/iPad device?
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+200 MB is not a problem. In the Settings I have "0 bytes" available space. And when I enter and use my app, this method reports about 150mb free space. Then I fill up this remaining space and only then the app crashes. So I ...
How to query SOLR for empty fields?
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@user2043553 Nope, if you ?q=-id:* you get Cannot parse '-q:*': '*' or '?' not allowed as first character in WildcardQuery
– Yzmir Ramirez
Dec 5 '14 at 18:47
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How to get the file extension in PHP? [duplicate]
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answered Aug 22 '12 at 20:26
AndreyAndrey
73555 silver badges22 bronze badges
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Performance of Arrays vs. Lists
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Very easy to measure...
In a small number of tight-loop processing code where I know the length is fixed I use arrays for that extra tiny bit of micro-optimisation; arrays can be marginally faster if you use the indexer / for form - but IIRC believe it dep...