function myCounter(){
    let counter = 0;
    function plus(){
        counter++;
        return counter;
    }
    return  plus;
}

console.log(myCounter());

console.log(myCounter());

function myCounter(){
    let counter = 0;
    function plus(){
        counter++;
        return counter;
    }
    return  plus;
}
var add = myCounter();

console.log(add());