how to pass eternal varibles into javascript in javascript

index.tsx
//define global variables
var var1 = "Hello";
var var2 = "World";

//function that uses global variables
function greet() {
   console.log(var1 + " " + var2);
}

//call the function
greet();
191 chars
12 lines

index.tsx
//example module
let myModule = (function() {

  //private variables
  let var1 = "Hello";
  let var2 = "World";

  //private function
  let greet = function() {
    console.log(var1 + " " + var2);
  }

  //public function
  return {
    sayHello: function() {
      greet();
    }
  }
})();

//call the public function
myModule.sayHello();
341 chars
23 lines