javascript-dasar/44-Function_Recursive.html at main · azamiset/javascript-dasar · GitHub

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<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Function Recursive</title>
</head>

<body>
  <script>
    // factorial 5 (5+4+3+2+1)
    function factorial(value) {
      let result = 1;
      for (let i = 1; i <= value; i++) {
        result += i;
      }
      return result;
    }
    console.log(factorial(5));

    // recursive adalah function yang memangil dirinya sendiri
    function factorialRecursive(value) {
      if (value === 1) {
        return 1;
      } else {
        return value * factorialRecursive(value - 1)
      }
    }
    console.log(factorialRecursive(5));
    // 5 * factorialRecursive(4)
    // 5 * 4 * factorialRecursive(3)
    // 5 * 4 * 3 * factorialRecursive(2)
    // 5 * 4 * 3 * 2 * factorialRecursive(1)
    // 5 * 4 * 3 * 2 * 1
    // = 120
  </script>
</body>

</html>