编辑代码

function printFruits(color) {
  // use switch case to find fruits by color
  switch (color) {
    case "red":
      return ["apple", "strawberry"];
    case "yellow":
      return ["banana", "pineapple"];
    case "purple":
      return ["grape", "plum"];
    default:
      return [];
  }
}

printFruits(null); // []
printFruits("yellow"); // ['banana', 'pineapple']

// 可以为

const colors = {
    red: ["apple", "strawberry"],
    yellow: ["banana", "pineapple"],
    purple: ["grape", "plum"]
}

const fun = (color) => {
    return colors[color] || []
}

console.log(fun('red'))