CoffeeScript recursive function

Recursive function

Problem

You want to call the same function in a function.

Solution

Use a named function:

ping = ->
    console.log "Pinged"
    setTimeout ping, 1000

If it is an unnamed function, use @arguments.callee:

delay = 1000

setTimeout((->
    console.log "Pinged"
    setTimeout arguments.callee, delay
    ), delay)

Discuss

Although arguments.callee allows recursion of unnamed functions, which has some advantages in memory-intensive applications, named functions are relatively clear-purpose and easier to maintain code.