About this Course

Learn how to handle asynchronous work with ease! In this course, you'll use Native JavaScript Promises to write asynchronous code that is easy to read, easy to write and easy to debug.

Along the way, you'll be using Promises to make a webapp come to life!

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Course Cost
Free
Timeline
Approx. 3 weeks
Skill Level
Advanced
Included in Course
  • Icon course 01 3edf6b45629a2e8f1b490e1fb1516899e98b3b30db721466e83b1a1c16e237b1 Rich Learning Content

  • Icon course 04 2edd94a12ef9e5f0ebe04f6c9f6ae2c89e5efba5fd0b703c60f65837f8b54430 Interactive Quizzes

  • Icon course 02 2d90171a3a467a7d4613c7c615f15093d7402c66f2cf9a5ab4bcf11a4958aa33 Taught by Industry Pros

  • Icon course 05 237542f88ede3178ac4845d4bebf431ddd36d9c3c35aedfbd92e148c1c7361c6 Self-Paced Learning

  • Icon course 03 142f0532acf4fa030d680f5cb3babed8007e9ac853d0a3bf731fa30a7869db3a Student Support Community

Join the Path to Greatness

This free course is your first step towards a new career with the Full Stack Web Developer Nanodegree Program.

Free Course

JavaScript Promises

by Google

Enhance your skill set and boost your hirability through innovative, independent learning.

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Course Leads

  • Cameron Pittman
    Cameron Pittman

    Instructor

What You Will Learn

Lesson 1

Creating Promises

  • Promises syntax and scope.
  • Simplifying common, useful methods with Promises.
  • Basic error handling.
Lesson 1

Creating Promises

  • Promises syntax and scope.
  • Simplifying common, useful methods with Promises.
  • Basic error handling.
Lesson 2

Chaining Promises

  • Creating sequences of async work manually.
  • Advanced error handling.
  • Techniques for generating sequences of async work with array methods.
Lesson 2

Chaining Promises

  • Creating sequences of async work manually.
  • Advanced error handling.
  • Techniques for generating sequences of async work with array methods.

Prerequisites and Requirements

We expect that students have built web apps in the past and they are familiar with the pitfalls of callback-heavy code. There is no HTML or CSS in this class.

JavaScript Skills Required:

  • Using functions to return objects and other functions
  • Basic understanding of scope and closures
  • Reading and writing named and anonymous callbacks
  • Array methods like .forEach and .map

Other Requirements:

  • Ability to use GitHub to clone repos and checkout branches
  • Comfort with command line tools

See the Technology Requirements for using Udacity.

Why Take This Course

Every web developer needs to be able to work with asynchronous code. Network requests, browser events, web workers and just about every else about the web happens asynchronously.

JavaScript developers normally rely on callbacks to execute async code, but Native JavaScript Promises offer a much easier solution. With Promises, error handling is streamlined and it becomes possible to flexibly chain lots of asynchronous work without creating a tangled mess of callbacks.

What do I get?
  • Instructor videos
  • Learn by doing exercises
  • Taught by industry professionals

Thanks for your interest!

We'll be in touch soon.

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