Declaring of multiple variables in JavaScript

Let's declare several variables:

javascriptlet a = 1;
let b = 2;
let c = 3;

We can simplify the code above if we write let one time and listing then the required variables with their values after it, in such a way:

javascriptlet a = 1, b = 2, c = 3;

You can first declare all variables, and then assign values to them:

javascriptlet a, b, c; // declare all 3 variables

// Assigning values to variables:
a = 1;
b = 2;
c = 3;
Задание 1

Try all the described ways of declaring variables by yourself.