Guess the outputs of the following codes:
// Code 1:
function func1(){
setTimeout(()=>{
console.log(x);
console.log(y);
},3000);
var x = 2;
let y = 12;
}
func1();
// Code 2:
function func2(){
for(var i = 0; i < 3; i++){
setTimeout(()=> console.log(i),2000);
}
}
func2();
// Code 3:
(function(){
setTimeout(()=> console.log(1),2000);
console.log(2);
setTimeout(()=> console.log(3),0);
console.log(4);
})();
