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Run results for: Object Literal vs If Else vs Switch Case

Benchmark of Object Literal vs If Else vs Switch Case

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Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36
Chrome 103
Windows
Desktop
2 years ago
Test name Executions per second
Object Literal 4592487.0 Ops/sec
If Else 1571642.4 Ops/sec
Switch Case 4694115.5 Ops/sec
Object Literal 2 4718195.0 Ops/sec
Script Preparation code:
AخA
 
animal = "cheetah"
Tests:

  • Object Literal

    ​x
     
      const babyAnimals = {
        dog: "Puppy",
        cat: "Kitten",
        cheetah: "Cub",
      };
    ​
      let result1 = babyAnimals[animal] || "-";

  • If Else

     
      let result2 = "-";
      if (animal === "dog") result2 = "Puppy";
      else if (animal === "cat") result2 = "Kitten";
      else if (animal === "cheetah") result2 = "Cub";
    ​

  • Switch Case

     
      let result3 = "-";
      switch (animal) {
        case "dog":
          result3 = "Puppy";
          break;
        case "cat":
          result3 = "Kitten";
          break;
        case "cheetah":
          result3 = "Cub";
          break;
        default:
      }
    ​

  • Object Literal 2

     
      const babyAnimals = {
        dog: "Puppy",
        cat: "Kitten",
        cheetah: "Cub",
      };
    ​
      let result1 = babyAnimals[animal] ?? "-";