What is console in dev tools ?

When we use javascript, it's a way to interact with our page through console on Devtools

What is variables?

Variables are like a bucket where we can store up our informations/values.

const age = 18;
console.log(age); // Prints the age in console 

The Difference between let, var and const

var & let gives us the ability to change the value at any other point where as const doesn't gives us that functionality & value can be mutated.**

let age = 13;
console.log(age)// 13
age = 18;
console.log(age) //18

const boy = true;
boy = false;
console.log(boy) // Throws an error