jsloopExamples

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Study</title>
</head>
<body>
    <script>
        'use strict'


        console.log('for loop start');

        let num = 7;

        while ( num < 5 )
        {
            console.log(`num = ${num}`);
        //
        //
        //
            ++num;

        };

        let sum = 0;
        let digit;

        //for(sum = 0, num = 26748; (digit = num % 10 , num) ; sum += digit, num = Math.floor(num / 10));

        for(num = 26748; num; num = Math.floor(num / 10))
        {

            digit = num % 10;
            sum += digit
        }



        console.log(`sum = ${sum}`)
        console.log('for loop stop');

/*
        let num = 123456;
        let sum = 0;
*/
 //       sum = (num % 10) + (Math.floor(num / 10) % 10) + (Math.floor(num / 100));
 //       sum += num % 10;
 //       sum += Math.floor(num / 10) % 10;
 //       sum += Math.floor(num / 100) % 10;

/*
        sum += num % 10;
        num = Math.floor(num / 10);
        sum += num % 10;
        num = Math.floor(num / 10);
        sum += num % 10;
        num = Math.floor(num / 10);
        sum += num % 10;
        num = Math.floor(num / 10);
        sum += num % 10;
        num = Math.floor(num / 10);
        sum += num % 10;
        num = Math.floor(num / 10);
*/

//        console.log(`sum = ${sum}`);

    </script>
</body>
</html>