public/subjects/go-to-11

Go to 11

Looping with the while keyword

Loops are one of the last missing basic blocks of programing left to learn, let's see it in action:

while (count < 30) {
  // Code to be repeated here
}

As you can see, it is exactly like an if, we have a scope {} and a (condition) just a new keyword.

Unlike the if however, the code inside the scope will be executed as long as the condition is true

It is easy to get stuck in an never ending loop as if your condition is never false you will always be stuck in a loop

As such it is common to have some kind of iteration inside our looping code:

while (count < 30) {
  count = count + 1
}

Now everytime our code is executed, the value of count will be incremented by 1, until it reach 30 and stop.

If your code is stuck in an infinite loop, you can do a Ctrl+C shortcut in the terminal to interrupt the code

Instructions

Write a function goTo11 that takes a start number argument and call console.log on each numbers from the start (included) up to and including 11.

If the start is higher than 11 your function must do nothing.

These go to Eleven... — "This is Spinal Tap" (1984)