JavaScript Closures - 2

closure-example.js

function customGreet(greetingPrefix) {
  var customGreetingPrefix = greetingPrefix; // For simplicity we store it explicitly in a local variable
  function printGreet(name) {
    console.log(customGreetingPrefix + ' ' + name + '.');
  }
  return printGreet;  
}
greetWithHey = customGreet('Hey');
greetWithHello = customGreet('Hello');
greetWithHey('Tom');
greetWithHello('Jerry');