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Difference between 3NF and BCNF in simple terms (must be able to explain to an 8-year old)
...ata depends on the key [1NF], the whole key [2NF] and nothing but the key [3NF] .
6 Answers
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Single Page Application: advantages and disadvantages [closed]
...d about SPA and it advantages. I find most of them unconvincing. There are 3 advantages that arouse my doubts.
11 Answers
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How do I fix the indentation of an entire file in Vi?
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1235
=, the indent command can take motions. So, gg to get the start of the file, = to indent, G to ...
Rails find record with zero has_many records associated [duplicate]
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edited May 23 '17 at 12:34
Community♦
111 silver badge
answered Mar 8 '12 at 6:31
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Android static object lifecycle
... screen populate in another screen then user can edit search criteria from 3rd screen and goes to 4th screen.
4 Answers
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Rails formatting date
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237
Use
Model.created_at.strftime("%FT%T")
where,
%F - The ISO 8601 date format (%Y-%m-%d)
%T...
Difference between addSubview and insertSubview in UIView class
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103
The only difference is in where the view is added: whether it is the frontmost view (addSubview...
Make a link use POST instead of GET
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edited Feb 19 '16 at 23:14
Michał Perłakowski
63.1k2121 gold badges133133 silver badges148148 bronze badges
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HashSet versus Dictionary w.r.t searching time to find if an item exists
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153
HashSet vs List vs Dictionary performance test, taken from here.
Add 1000000 objects (without c...
In absence of preprocessor macros, is there a way to define practical scheme specific flags at proje
... Apple docs. Here's an example:
#if DEBUG
let a = 2
#else
let a = 3
#endif
Now, you must set the "DEBUG" symbol elsewhere, though. Set it in the "Swift Compiler - Custom Flags" section, "Other Swift Flags" line. You add the DEBUG symbol with the -D DEBUG entry.
(Build Settings -> Swif...