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What is data oriented design?
...ht do operations that affects only part of a balls properties. E.g. if you combine the colors of all the balls in various ways, then you want your cache to only contain color information. However when all ball properties are stored in one unit you will pull in all the other properties of a ball as w...
Use didSelectRowAtIndexPath or prepareForSegue method for UITableView?
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val-mutable versus var-immutable in Scala
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Pretty common question, this one. The hard thing is finding the duplicates.
You should strive for referential transparency. What that means is that, if I have an expression "e", I could make a val x = e, and replace e with x. This ...
Ways to save Backbone.js model data?
...rce from the server, (e.g. donut model I saved last time, a blog entry, an computer specification) and that resource exists, you do a GET request. Conversely, when you want to create a new resource you use POST.
Before I got into Backbone, I've never even touched the following two HTTP request meth...
How to use Bash to create a folder if it doesn't already exist?
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First, in bash "[" is just a command, which expects string "]" as a last argument, so the whitespace before the closing bracket (as well as between "!" and "-d" which need to be two separate arguments too) is important:
if [ ! -d /home/mlzboy/b2c2/share...
How to create a colored 1x1 UIImage on the iPhone dynamically?
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Nice one :-) I would recommend putting this method into a category as a class method, then it can be added into a project simply, and invoked using a line like [UIImage imageWithColor: [UIColor redColor]].
– user577537
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Programmatically access currency exchange rates [closed]
...o:
For example, to convert from GBP to EUR:
http://download.finance.yahoo.com/d/quotes.csv?s=GBPEUR=X&f=sl1d1t1ba&e=.csv
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Does MySQL included with MAMP not include a config file?
I can't seem to find the my.cnf or other config file for the MySQL that comes with MAMP . Does it not include one?
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What's the difference between --general-numeric-sort and --numeric-sort options in gnu sort
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General numeric sort compares the numbers as floats, this allows scientific notation eg 1.234E10 but is slower and subject to rounding error (1.2345678 could come after 1.2345679), numeric sort is just a regular alphabetic sort that knows 10 com...