JSFiddle - React, Tailwind, and code Playground

by rsmclaug

JavaScript

/* -- THE OLD WAY -- */
/*
var getName = function(n) {
  document.write("building array", "<br/>");
  var names = ['john', 'paul', 'george', 'ringo'];
  return names[n];
};
*/

/* -- THE CLOSURE WAY -- */
var getName = (function() {
  document.write("building array", "<br/>");
  var names = ['john', 'paul', 'george', 'ringo'];
  return function (n) {
    return names[n];
  };
})();

document.write(getName(0), "<br/>", 
               getName(1), "<br/>",
               getName(2), "<br/>", 
               getName(3), "<br/>");