Application logic drills

Application logic drills

Traffic lights drill

function doTrafficLights() {
  const activeLight = getActiveLight();
  if (activeLight === "red"){
    turnRed();
  }
  else if (activeLight === "yellow"){
    turnYellow();
  }
  else {
    turnGreen();
  }
}

Error alert drill

function main() {
  try { doAllTheThings(); 
  } catch(error){
    const e = error;
    console.error;
    reportError(e);
  }
}