Fast, compiled(using eval :) named parameter formatter for JS.

gistfile1.js

function formatter(format) {
  var findpatt = /:(\w+?):/g 

  var format = format.replace(findpatt, '"+data["$1"]+"');
  eval('var nfun = function(data) {'+
    'return "'+format+'";'+
  "};")

  return nfun;
}



var test  = formatter(":1:, blaah :2:");
var test2 = formatter(":1:, :2:");



console.log(test({1: "one", 2: "two"}));
console.log(test2({1: "one", 2: "two"}));