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Course

Learn TypeScript: Functions

Write functions in TypeScript to declare expected types of function parameters and return values.

4.6
This course includes
4,144 learners enrolled
This course includes

  • Skill level

    Beginner

  • Time to complete

    Average based on combined completion rates — individual pacing in lessons, projects, and quizzes may vary
     
    1 hour

  • Projects

    1

  • Prerequisites

    None

About this course

Continue your TypeScript learning journey with Learn TypeScript: Functions. In addition to variable types, TypeScript allows you to declare the expected types of your function parameters and infer the types returned by those functions.

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Meet the full team
Kenny Lin
Software Engineer at Codecademy
Kenny is the Domain Manager for the Web Development Domain at Codecademy. He contributed to a wide range of courses and paths at Codecademy, including JavaScript, Bootstrap, Handlebars, Phaser.js, Go, Swift, TypeScript, and Lua.
Meet the full team

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Learn TypeScript: Functions course ratings and reviews

4.6
118 ratings
  1. 5 stars
    70%
  2. 4 stars
    22%
  3. 3 stars
    5%
  4. 2 stars
    2%
  5. 1 star
    1%
  • The progress I have made since starting to use codecademy is immense! I can study for short periods or long periods at my own convenience - mostly late in the evenings.
    Chris
    Codecademy Learner @ USA
  • I felt like I learned months in a week. I love how Codecademy uses learning by practice and gives great challenges to help the learner to understand a new concept and subject.
    Rodrigo
    Codecademy Learner @ UK
  • Brilliant learning experience. Very interactive. Literally a game changer if you're learning on your own.
    John-Andrew
    Codecademy Learner @ USA

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