ThinkFul-Logic(Error alert)

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

function doAllTheThings() {
  throw {
    message: "Everything's ruined",
    name: "FatalException",
    toString: function() {
      return `${this.name}: ${this.message}`;
    }
  }
}

function reportError(e) {
  $('.js-error-report').text(`Uh oh, something went wrong! Here's what we know: ${e.message}`);
}

$(main);

ThinkFul-Logic(Traffic lights)

function doTrafficLights() {
  const activeLight = getActiveLight();
  switch(activeLight) {
    case "red":
        turnRed();
        break;
    case "green":
         turnGreen();
        break;
    case "yellow":
        turnYellow();
        break;
  }
}

// this function randomly returns red, yellow, or green
// and is called by doTrafficLights.
// don't modify it!
function getActiveLight() {
  return (['red', 'green', 'yellow'])[Math.floor(Math.random() * 3)];
}

/* From here down, you are not expected to 
   understand.... for now :)  
   
   
   Nothing to see here!
   
*/

function turnOffLights() {
  $('.traffic-light').removeClass('yellow-on red-on green-on');
}

function turnGreen() {
  turnOffLights();
  $('.green-light').addClass('green-on');
}

function turnYellow() {
  turnOffLights();
  $('.yellow-light').addClass('yellow-on');
}

function turnRed() {
  turnOffLights();
  $('.red-light').addClass('red-on');
}


function handleClicks() {
  $('.js-control-lights').click(function() {
    doTrafficLights();
  });
}

$(function() {
  turnOffLights();
  handleClicks();
});