Juliet C.

I have just completed the first chapter of the [*Introduction to the Theory of Computation*](http://www-math.mit.edu/~sipser/book.html) by *Michael Sipser* which explains the basics of finite... more

I have a string, say `'123'`, and I want to convert it to `123`.I know you can simply do `some_string.to_i`, but that converts `'lolipops'` to `0`, which is not the effect I have in mind. I want it... more

I have a map which either changes a value or sets it to nil. I then want to remove the nil entries from the list. The list doesn't need to be kept.This is what I currently have:<!-- language:... more

For example: namespace space1{ int var; namespace space2{ int var; namespace space3{ int var; } } How would I access the variable from space1... more

In Ruby, how do I skip a loop in a `.each` loop, similar to `continue` in other languages?