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| Diff Summary | |||||
|---|---|---|---|---|---|
| Title | ideal <a href="http | this regard, symobls | |||
| Date | 2015-02-17 10:38:38 | 2015-02-17 15:05:37 | |||
| Editor | Anonymous | Anonymous | |||
| Edit | Edit this version | Edit this version | |||
| Tags | |||||
| 2015-02-17 10:38:38 by Anonymous / Edit this version | 2015-02-17 15:05:37 by Anonymous / Edit this version | ||||
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| t | 1 | ideal <a href="http://insurancequotes2u.net">chea | t | 1 | this regard, symobls could be seen as top level |
| > | pest california car insurance</a> aa | > | enums. However, the advantage of putting related c | ||
| > | onstants inside a class is that it adds semantics | ||||
| > | to your application. The constants can appear logi | ||||
| > | cally grouped instead of floating in the air on th | ||||
| > | eir own. Of course, I'm not saying that these cust | ||||
| > | om enums should replace symobls. I just find it us | ||||
| > | eful to group things that are related together.@Ba | ||||
| > | daud,As you can see in my exemple, I don't create | ||||
| > | any instance of class Color. I only work with the | ||||
| > | object Color, which is an instance of class Class. | ||||
| > | Also, you'll note that i don't write Color.BLUE b | ||||
| > | ut Color::BLUE, which triggers the const_missing m | ||||
| > | ethod. It would be equivalent of doing : Color.con | ||||
| > | st_missing(:BLUE) but there won't be any point to | ||||
| > | access it that way! Finally, I don't quite underst | ||||
| > | and your claim about type safety. This was a pract | ||||
| > | ical example illustrating how to create an enum-li | ||||
| > | ke class in ruby. If for some reason Color::BLUE a | ||||
| > | nd Chess::KING would be equal then so what? Those | ||||
| > | are integers values after all. The purpose (in th | ||||
| > | is example at least) was to use an enum as a set o | ||||
| > | f constants logically grouped together. (Like if | ||||
| > | Color was a namespace) | ||||
