Dart machine: defeat

It’s time to break out of this endless series of wins!

The program already knows how to accumulate misses in the misses variable. All we have left to do is teach it how to stop the loop after reaching three misses. But where in the loop should this condition be checked? In the beginning, the middle or the end?

Here is the current order of the commands in the loop:

1. We get the result of the shot.
2. Check that the shot result is less than zero. If this is the case, then go to step three, otherwise go to step four.
3. Record the miss in the console and increase the miss counter by one.
4. For a hit, add the score to total and log the throw’s result to the console.

We need the following:

• A check for the total number of misses must be completed at every iteration of the loop.
• When the three-miss mark is reached, the game must immediately stop.

We’ll check the miss count at the beginning of the loop, before taking another throw or getting its score.

We need a command that will interrupt the execution of the loop.

In JavaScript, the break statement stops the loop. Add a check for the miss count at the start of the loop body, and use break when it reaches three.

Use continue carefully: it skips the remaining code in the current iteration, which can make the loop’s flow harder to follow.

• In a while loop, continue skips the remaining body code and checks the condition again.
• In a for loop, continue skips the remaining body code, runs the update, then checks the condition before the next iteration.