FOR LOOPS
for (inital expression; condition; increment) {
statements
}
use (i)for index
for (let i = 10; i >= 1; i--) {
    if (i % 2 !== 2) console.log(i)
}
 

FOR IN LOOPS
const device = {
    brand: 'Acer',
    model: 'TMP12-322',
    specs: {
        ram: 8,
        rom: 256
    }
}
for (key in device.specs) {
    console.log(key, device.specs[key])
}

// LOOP CONTROL
for (let i = 1; i <= 10; i++) {
    if (i == 5)
        // the counting will stop less than 5
        break;
    console.log(i)
}