CODE EXAMPLE FOR JAVASCRIPT

multiple counter for loop in javascript

for( [init]; [test]; [increments]) { [block] }

for (var i = 0, j = 10; i <= 50 && j < 30; i++, j+=2) {
        console.log(`i: ${i}, j: ${j}`);
}   

for (var i = 0, j = 10; i <= 30; i++, j+=2) {
        console.log(`i: ${i}, j: ${j}`);
}