Silver Idea Badge - Maker Part 2

Basically, Iḿ stuck on the second part, the code is like this
var rooms = [bridge,lab,canteen,cabin,storage]

initiate();

function lifeSupportCheck() {
for (i=0;i<rooms.length;i++) {
rooms;
}
}

lifeSupportCheck();

Is this all on one line

Does anyone know how to do this?
You have to write a loop and inside the loop you must call the playSound() function and pass the soundBlock object into it
Edit: I got the answer here it is for anyone else who needs it:
var soundBlocks = [crash,happyBeep,whistle];
for (i=0;i<soundBlocks.length;i++)
{
playSound(soundBlocks);
}