exercice

// Exercise 2 - Closures
// Wrap the following code in a closure and export only the "countdown" function.
// Code
(function (container) {
    var index;

    function log() {
        console.log(index);
    }

    function iterate() {
        log();
        if (index > 1) setTimeout(iterate, 1000);
        index--;
    }

    container.countdown = function countdown() {
        index = 10;
        iterate();
    }
   
})(window)