Day 3: Write Your First Jest Test | Jest Tutorial

From The House of LambdaTest LambdaTest Tutorials
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Ready to write your first real test with Jest? This video makes it insanely simple.

In this episode, you’ll finally learn how to validate your code like a pro using Jest’s super useful functions like expect() and toBe(), create clean test structures, and run everything smoothly with npm test. Let’s turn your functions into bug-proof, testable code! :fire:

:dart: What’s inside:

  • Write your first Jest test (finally!)
  • Use expect + toBe with confidence
  • Build simple testable methods (like our calculator’s add :nerd_face:)
  • Structure your test files neatly
  • Run tests using npm test like a pro

Dive in, level up, and let’s test smarter!