Function calculatePrice

examples/components/TshirtDesigner.js:11–20

(objects,
                        initialCost = 5)

};

const calculatePrice = (objects,
                        initialCost = 5) => (
  objects.map(
    ({type, ...rest}) =>
      priceMap[type](rest)
  ).reduce(
    (a, b) => a + b,
    initialCost
  )
);

const Background = ({style}) => (
  <svg width="350" height="400" style={{