Immediately Invoked Function Expressions

//IIFEs or Immediately Invoked Function Expressions call themselves when they are declared
      (function () {
      console.log("IMMEDIATE INVOKED!!!");
    })();

    //They can be utilized to make a module to apply multiple functions to a single object at once
    let giveSuperpowers = (function () {
      return {
        giveFly: function(obj) {
          obj.Fly = function() {
            console.log("You can fly now");
          };
        },
        giveSuperStrength: function(obj) {
          obj.superStrength = function() {
            console.log("You have super strength now");
          };
        }
      }
    })();