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How to create the perfect OOP application [closed]

... p contains (np/100 rounded up to the nearest 0.05) amount of sales tax. Now, what are the relationships between all those nouns? Basic Sales Tax is a kind of Sales Tax Import Duty is a kind of Sales Tax A Sales Tax has a Rate which is a Decimal Books are a kind of Item Food is a kind of Item Me...
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Is it possible to disable the network in iOS Simulator?

... Not sure if it's in response to this radar bug, but the Developer Tools now include a Network Link Conditioner tool. – samvermette Apr 5 '12 at 18:12 7 ...
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How to use a variable to specify column name in ggplot

... From the release notes of ggplot2 V3.0.0 : aes() now supports quasiquotation so that you can use !!, !!!, and :=. This replaces aes_() and aes_string() which are now soft-deprecated (but will remain around for a long time). The idiomatic way now would be to convert ...
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Populate nested array in mongoose

... Amazing - so much cleaner! This is now the modern and correct answer. Documented here. – isTravis Jan 31 '16 at 4:00 ...
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Add space between HTML elements only using CSS

... This should be the accepted answer. I know comments are not for thanks, i was only making use of the 'flex' display until now, and this 'grid' thing makes it all so easy from the parent container itself! To not leave it entirely useless, would add the following re...
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How to find keys of a hash?

I know in javascript Objects double as hashes but i have been unable to find a built in function to get the keys 9 Answers...
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How to properly use unit-testing's assertRaises() with NoneType objects? [duplicate]

...ne[:1] If you are using python2.6 another way beside the one given until now is to use unittest2 which is a back port of unittest new feature to python2.6, and you can make it work using the code above. N.B: I'm a big fan of the new feature (SkipTest, test discovery ...) of unittest so I intend t...
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Should you ever use protected member variables?

... The general feeling nowadays is that they cause undue coupling between derived classes and their bases. They have no particular advantage over protected methods/properties (once upon a time they might have a slight performance advantage), and t...
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Creating an instance using the class name and calling constructor

... @Joachim: I know it's varargs, but as it can get tricky when you have an Object[] argument, I prefer to create the array explicitly in this case. – Jon Skeet May 23 '11 at 8:32 ...
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Increase font size chrome console

...re specific than the general one above. */ body.platform-mac.platform-mac-snowleopard .monospace, body.platform-mac.platform-mac-snowleopard .source-code { font-size: 11px !important; font-family: Menlo, monospace; } body.platform-windows .monospace, body.platform-windows .source-code { ...