Answers for "why use const when we have let and var js"

what is the different between var and let and const in js

var tester = "hey hi";
    
    function newFunction() {
        var hello = "hello";
    }
    console.log(hello); // error: hell
o is not defined

Posted by: Guest on July-30-2021

Code answers related to "why use const when we have let and var js"