test("generates email response using default parameters", () => {
  const result = generateEmailResponse();

  expect(result).toContain("Dear Valued Customer");
  expect(result).toContain("a general inquiry");
  expect(result).toContain("24 hours");
});

test("uses default parameters", () => {
  const code = generateEmailResponse.toString();

  const hasDefaults =
    code.includes("Valued Customer") &&
    code.includes("a general inquiry") &&
    code.includes("24 hours");

  expect(hasDefaults).toBe(true);
});


user_code.test.js

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An introduction to JavaScript, covering the basic syntax of the language along with key terms and concepts that form the foundation for learning advanced features. The section includes hands-on tasks designed to help practice these concepts and make the content easy to remember without effort.

Challenge: Email Auto-Responder with Default Parameters

解答