while loop executes AFTER break statement

[Michael Covell]

How is "hello world" printed twice?  Isn't this impossible?

function IMPOSSIBLE_LOOP() {

  while (true) {

    Logger.log('hello world')

    break

  }

  Utilities.sleep(2000)

  return 'done'

}

Logger.log(IMPOSSIBLE_LOOP())

Execution log

3:03:52 PM

Notice

Execution started

3:03:52 PM

Info

hello world

3:03:54 PM

Info

done

3:03:54 PM

Info

hello world

3:03:57 PM

Notice

Execution completed

[Jim Willeke]

You are calling function IMPOSSIBLE_LOOP() twice.

The order of execution is not what some would expect.

I assume this is being run from the code console and directly executing the function  IMPOSSIBLE_LOOP().

This might help explain the order of execution.

In the code console run starthere()

function starthere(){

Logger.log(IMPOSSIBLE_LOOP())

}

function IMPOSSIBLE_LOOP() {

while (true) {

Logger.log('hello world')

break

}

Utilities.sleep(2000)

return 'return from IMPOSSIBLE_LOOP'

}

Logger.log(`finished running`);