The ruby def << syntax for defining methods
function, ruby, savon
Solution
`def <<` literally creates a new method called `<<`. Looking at the Ruby Operator Expressions reference, you can see a handful of those are methods that can be implemented, overridden, etc.
Nothing "unconventional" or special about it, just kind of weird if you're used to languages where that's handled in a special way.
Problem
Im trying to work my way through the Savon gem's source code and I found this line.. ``` def initialize @documents = [] end def <<(document) @documents << document end ``` I was curious as to what the `def <<` method does. And why he might have elected to use that syntax over something (maybe) more conventional. the source code can be found at: https://github.com/savonrb/savon/blob/master/lib/savon/wsdl/document_collection.rb