What will be the output of the below code :- var a = 90; doit(); function doit(){ console.log(a); var a = 10; }

Output of above will be undefined as inside function doit,variable 'a' will be hoisted at the top inside function scope and it will initialised as undefined.


var a = 90;
doit();
function doit(){
  console.log(a); // undefined
  var a = 10;
}