[removed] what does function(_) mean

Question

I\'m going through the bacon.js slide at: http://raimohanska.github.io/bacon.js-slides/1.html

In the 1st line of the 2nd block, it says:

function alw         


        

Answer 1

It's an anonymous function with one argument, the name of that argument is _.

I don't know why they bother with the argument, since the function doesn't use it.