Q:

js hoisting

/*Hoisting is JavaScript's default behavior of moving 
all declarations to the top of the current scope (script or function).
Be carefull that only declaration gets hoisted NOT the initialitations*/

var x = 5;
alert("x is  = "+x+". y is = "+y);//result => x is = 5. y is = undefined.
var y = 7;

/*
note that the code doesn't produce the error "y is not defined" like
it would if we would omit y. It executes but not in the way you would want.
*/
1

x = 5; // Assign 5 to x



elem = document.getElementById("demo"); // Find an element 

elem.innerHTML = x;                     
// Display x in the element

var x; // Declare x
 
0
Use Node JS
1

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