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What does ||= (or-equals) mean in Ruby?

... This question has been discussed so often on the Ruby mailing-lists and Ruby blogs that there are now even threads on the Ruby mailing-list whose only purpose is to collect links to all the other threads on the Ruby mailing-list that discuss this issue. Here's one: The definitive list of ||= ...
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Using group by on multiple columns

I understand the point of GROUP BY x . 2 Answers 2 ...
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How to get whole and decimal part of a number?

Given, say, 1.25 - how do I get "1" and ."25" parts of this number? 16 Answers 16 ...
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What is the most appropriate way to store user settings in Android application

...eating an application which connects to the server using username/password and I would like to enable the option "Save password" so the user wouldn't have to type the password each time the application starts. ...
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How to clear/remove observable bindings in Knockout.js?

...form multiple times. Through the user's action, an object/model is created and applied to HTML using ko.applyBindings(). 9 ...
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Get button click inside UITableViewCell

I have a view controller with a table view and a separate nib for the table cell template. The cell template has some buttons. I want to access the button click along with the index of the cell clicked inside the view controller where I have defined the Table view. ...
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Why does 1==1==1 return true, “1”==“1”==“1” return true, and “a...

I tested the above code in Chrome's console and for some reason, a() returns true, b() returns true, and c() returns false. ...
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Can I have multiple primary keys in a single table?

... In this example, BOTH userid and userdataid are needed to identify/find a unique row. Not sure what the OP's intention was, but I came here looking to see if I could uniquely identify a row with one of a set of keys. For instance, I would like to identif...
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Difference between Key, Primary Key, Unique Key and Index in MySQL

When should I use KEY , PRIMARY KEY , UNIQUE KEY and INDEX ? 8 Answers 8 ...
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What's the best UI for entering date of birth? [closed]

...ed user I suggest using a datepicker. Since usually you also have advanced and non-advanced users I suggest a combination of text input and datepicker. share | improve this answer | ...