let order = [];
function a() {
  try {
    return 'try';
  } finally {
    order.push('a-finally');
    return 'a-final-return';
  }
}
function b() {
  try {
    throw new Error('x');
  } catch (e) {
    order.push('b-catch');
    return 'b-catch-return';
  } finally {
    order.push('b-finally');
  }
}
console.log(a(), b(), order.join(','));