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Find all records which have a count of an association greater than zero
I'm trying to do something that I thought it would be simple but it seems not to be.
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Passing a method as a parameter in Ruby
I am trying to mess around a little bit with Ruby. Therefor I try to implement the algorithms (given in Python) from the book "Programming Collective Intelligence" Ruby.
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Why is a pure virtual function initialized by 0?
We always declare a pure virtual function as:
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What is the difference between a schema and a table and a database?
This is probably a n00blike (or worse) question. But I've always viewed a schema as a table definition in a database. This is wrong or not entirely correct. I don't remember much from my database courses.
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Why does the month argument range from 0 to 11 in JavaScript's Date constructor?
When initializing a new Date object in JavaScript using the below call, I found out that the month argument counts starting from zero.
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Find JavaScript function definition in Chrome
Chrome's Developer Tools rock, but one thing they don't seem to have (that I could find) is a way to find a JavaScript function's definition. This would be super handy for me because I'm working on a site that includes many external JS files. Sure grep solves this but in the browser would be much be...
Why does Vim save files with a ~ extension?
I've found that while using Vim on Windows Vim saves the file, a .ext.swp file that's deleted on closing the Vim window and a .ext~ file.
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Giving UIView rounded corners
My login view has a subview which has a UIActivityView and a UILabel saying "Signing In…". This subview has corners which aren't rounded. How can I make them round?
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What is the purpose of flush() in Java streams?
In Java, flush() method is used in streams. But I don't understand what are all the purpose of using this method?
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