console.log test done

Author: Grajales-K

Sprint-3/revise/implement/card-validator.js

@@ -0,0 +1,21 @@
+function cardValidator(num) {
+  const numStr = num.toString(); // Convert to string for iteration
+  if (numStr.length !== 16 || !/^[0-9]+$/.test(numStr) || numStr[numStr.length -1] % 2 === 1) {
+    return false; // Check length is 16 numbers long, if it only contains digits and if the last digits is even
+  }
+
+  let firstDigit = numStr[0]; // Track the first digit
+  for (let i = 1; i < numStr.length; i++) {
+    if (numStr[i] !== firstDigit) {
+      return true; // Found at least two different digits
+    }
+  }
+
+  return false; // All digits are the same
+}
+
+console.log(cardValidator(1111111111111111)); // Output: false
+console.log(cardValidator(1234567890123456)); // Output: true
+console.log(cardValidator(2222222222222222)); // Output: false
+console.log(cardValidator(3333333333333334)); // Output: true
+