Switch and Object Literals

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In this blog, we will learn about

Switch vs Object Literals

Switch

const returnFruit = (number) => {
  switch (number) {
    case 1:
      console.log("Orange");
      break;
    case 2:
      console.log("Mango");
      break;
    case 3:
      console.log("Banana");
      break;
    case 4:
      console.log("Apple");
      break;
    default:
      console.log("unknown");
      break;
  }
};

returnFruit(1); // Orange
returnFruit(2); // Mango
returnFruit(3); // Banana
returnFruit(4); // Apple
returnFruit(5); // unknown

Object Literal without default

const returnFruit = (number) => {
  return {
    1: "Orange",
    2: "Mango",
    3: "Banana",
    4: "Apple"
  }[number];
};
console.log(returnFruit(1)); // Orange
console.log(returnFruit(2)); // Mango
console.log(returnFruit(3)); // Banana
console.log(returnFruit(4)); // Apple
console.log(returnFruit(5)); // undefined

Object with default

const returnFruit = (number) => {
  return (
    {
      1: "Orange",
      2: "Mango",
      3: "Banana",
      4: "Apple"
    }[number] || "unknown"
  );
};
console.log(returnFruit(1)); // Orange
console.log(returnFruit(2)); // Mango
console.log(returnFruit(3)); // Banana
console.log(returnFruit(4)); // Apple
console.log(returnFruit(5)); // unknown

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Abhishek Kovuri, UI developer