gistfile1.txt

<script>
  // Question 1: Anonymous Function
  // Write an anonymous function that takes two numbers as parameters and returns their sum.
  var add = function (a, b) {
    return a + b
  }

  var sum = add(3, 4)
  console.log(sum)


  console.log("\n-------------------------------------------------\n");

  // 2. Write a function `isEven` that takes a number as a parameter and returns `true` if it is even, and `false` otherwise.

  function isEven (x) {
    const remainder = x % 2
    return remainder === 0
  }

  console.log(isEven(4))
  console.log(isEven(7))


  console.log("\n-------------------------------------------------\n");

  // 3. Implement a function that checks if a given number is a palindrome (e.g., 121, 1331).

  function isPalindrome (x) {
    var original = x
    var reversed = 0

    while (x > 0) {
      reversed = reversed * 10
      var next = x % 10
      reversed = reversed + next
      x = (x - next) / 10
    }

    return original === reversed
  }

  console.log(isPalindrome(123))
  console.log(isPalindrome(121))

  console.log("\n-------------------------------------------------\n");