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Ruby: extend self
In Ruby, I understand the basic idea of extend . However, what's happening in this segment of code? Specifically, what does extend do? Is it just a convenient way of making the instance methods into class methods? Why would you do it this way rather than specifying class methods from the beginnin...
Read input from console in Ruby?
I want to write a simple A+B program in ruby, but I have no idea how to work with the console.
5 Answers
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How do I scroll the UIScrollView when the keyboard appears?
... On iPad this moves the scroll view down instead of up. Any idea what's happening there?
– Justin Vallely
Apr 6 '16 at 21:14
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How should the ViewModel close the form?
...) Seriously, why on earth would you want a singleton ViewModel? It's a bad idea to keep mutable state in global variables. Makes testing a nightmare, and testing is one of the reasons you would use MVVM in the first place.
– Joe White
May 3 '11 at 22:07
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Node.js or Erlang
... the guy who actually wrote node. I think that will help give you a better idea where node is at, and where it's going.
Keep in mind that node still is in late development stages, and so has been undergoing quite a few changes—changes that have broke earlier code. However, supposedly it's at a po...
android.view.InflateException: Binary XML file: Error inflating class fragment
...oesn't work (Binary xml file line... errror inflating class fragment). Any idea ?
– Cocorico
Apr 7 '15 at 13:30
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REST Complex/Composite/Nested Resources [closed]
...r conceptual or business model) in order to fit a technology. Not a great idea.
You should weigh these two choices against simply allowing coverless comics.
Which of the three choices should you take? Not knowing too much about your situation, but answer the general 1..N dependent resource ques...
Is there a good reason to use upper case for SQL keywords? [closed]
...t me, but that doesn't get to the question of whether upper case is a good idea in SQL.
– bignose
Aug 14 '12 at 2:33
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Is there a CSS selector for the first direct child only?
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Good idea, unfortunately I also need to support IE6, and if I use h1, I will need to set font-size to inherit so that the font matches that of the body, and ie7 and below don't support inherit. arg!
– Jeremy...
How to make Regular expression into non-greedy?
...t's going to match 0 number of c characters, hence replacing it. I have no idea how it works though, because that doesn't compile in any regex engine i've tried ????
– Noctis
Feb 19 at 5:40
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