FEW-Js1

What is the correct way to declare a constant variable in JavaScript?

What will happen if you try to reassign a value to a variable declared with const?

what is the answer for this "let num; console.log(num);

Which one of these variable names is NOT valid in JavaScript?

let, var, and const are used to (a)   variables in JavaScript.

Variables created with const must be (a)   during create.

What will be the output?
const num;

num = 5;

console.log(num);

const num = 2;

num = 6;

console.log(num);

let num=5;

console.log("the value is :"+Num);

console.log(num)

const num=5;