Chaining functions

perf.js

// chaining functions

var flag = 0;

var list = [
  function(f){},
  function(f){},
  function(f){},
  function(f){ flag = f; }
];
var N = list.length;

function chain(i, arg){
  list[i](arg);
  var next = i + 1;
  if(next < N){
    chain(next, arg);
  }
}

this.group(
  "chains",
  function recur(){ chain(0, 1); },
  function iter(){
    for(var i = 0; i < N; ++i){
      list[i](2);
    }
  },
  function iter2(){ list.forEach(function(f){ f(3); }); }
);

Benchmark it with http://www.perfjs.com/