Immediately invoked function expressions (IIFE)

#Characteristics#

• IIFE is not reusable as it is not assigned to a variable
• You can obtain data privacy and not be impacted from outside scope.

// IIFE
function game() {
  var score = Math.random() * 10;
  console.log(score >= 5);
}
game();

(function() {
  var score = Math.random() * 10;
  console.log(score >= 5);
})();


(function(goodLuck) {
  var score = Math.random() * 10;
  console.log(score >= 5 - goodLuck);
})(5);