how to write a recursive method in javascript

Here's an example of a recursive function in JavaScript:

index.tsx
function countdown(n) {
  // base case
  if (n === 0) {
    return;
  }
  console.log(n);
  // recursive case
  countdown(n - 1);
}

countdown(5);
147 chars
12 lines

This function takes a number n and counts down from it to 0, logging each number to the console. The if statement serves as the base case, which is the point at which the function stops calling itself recursively. In this case, the base case is when n reaches 0. The recursive case comes after the base case, and in this function, it involves calling countdown with n - 1. This is what makes the function call itself repeatedly until it reaches the base case.