else if: More Than Two Choices

Life isn't always a simple yes-or-no. Sometimes there are several possibilities. For that, you can chain conditions together with else if:

const score = 73;

if (score >= 80) {
  console.log("Grade: A 🌟");
} else if (score >= 70) {
  console.log("Grade: B 👍");
} else if (score >= 60) {
  console.log("Grade: C 🙂");
} else if (score >= 50) {
  console.log("Grade: D 😬");
} else {
  console.log("Grade: F 📚 Time to hit the books!");
}

Grade: B 👍

JavaScript checks each condition from top to bottom, and runs the block for the first one that's true. Then it skips all the rest. If none of them are true, the final else block runs (you don't have to include a final else, but it's often a good idea).

So with a score of 73:

1. Is 73 >= 80? No. Move on.
2. Is 73 >= 70? Yes! Print "Grade: B" and skip everything else.

const score = 95;

if (score >= 50) {
  console.log("Grade: D");
} else if (score >= 80) {
  console.log("Grade: A");
}

Grade: D