removing all space and - from the string input

Sprint-3/3-stretch/creditCard-validator.js

@@ -1 +1,13 @@
-function creditCardValidator(cardNumber) {}
+function creditCardValidator(cardNumber) {
+  // Remove all - and spaces from the input
+  const sanitized = cardNumber.replace(/[-\s]/g, "");
+
+  //check if the length of the sanitized input is 16
+  if (sanitized.length !== 16) {
+    return false;
+  } else {
+    return true;
+  }
+}
+
+module.exports = creditCardValidator;

Sprint-3/3-stretch/creditCard-validator.test.js

@@ -0,0 +1,8 @@
+const creditCardValidator = require("./creditCard-validator");
+
+describe("creditCardValidator", () => {
+  test("should return true for a 16 digit long card number", () => {
+    expect(creditCardValidator("1234-5678-9012-3456")).toBe(true);
+    expect(creditCardValidator("1234 5678 9012 3456")).toBe(true);
+  });
+});