javascript variable and function Hoisting

All the declarations in javascript are moved to the top, When the page is executed.

Hoisting Example :

a = 25;

b = a+5/100;

var a;

Here var a; statement will be moved to top by javascript engine.

But this is not true for intializations :

Non Hoisting - intialization Example :

document.write(x);

var x=5;

In this case x will be undefined when the first statement is executed.

Same is true with function declarations also.

var funct1 = function(){
      console.log("func1");
}

function funct2(){
      console.log("func2");
}


func2 will be hoisted in above case, But func1 will not be hoisted as that is a intialization.