For loop

With the for loop, you can repeat a certain part of the code until the ending condition is met.

for(uint256 i = 0, i < 100, i++){
    // do something repeatedly
}

The counter variable i starts from 0 and is incremented by 1 in each iteration (this is done by the i++ until it reaches 100 (or higher). Once the condition i < 100 is not true anymore, the loop is exited.

A for loop can also be interrupted by the break command.