hoisting2.js

var var1 = 1;
var var2 = 2;

(function () {
    console.log("var1 = " + var1);

    var var1 = 10;

    console.log("var2 = " + var2);
    console.log("var1 = " + var1);
})();

//Output

//var1 = undefined
//var2 = 2
//var1 = 10