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Understanding a Matcher

Explore how Jest matchers function within React testing to verify various results accurately. Understand the benefits of using built-in and community matchers for clearer, maintainable test code.

Matcher example

We have been using matchers in most of the lessons in this course so far. What do you think the matcher is in the test below?

test("Should return true when valid email", () => {
  const result = isEmail("someone@somewhere.com");
  expect(result).toBe(true);
});
...