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!

Course Cost
Free
Timeline
Approx. 3 weeks
Skill Level
advanced
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Included in Product

Rich Learning Content

Interactive Quizzes

Taught by Industry Pros

Self-Paced Learning

Student Support Community

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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

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