ANNUAL PRO PLAN, BEST VALUE

Save 33% with annual billing - only $5.99/mo

Annual Pro: $5.99/mo

Upgrade
Home
CoursesExercisesProjectsNew
SandboxResourcesBlog
ProfilePricing
Home
CoursesExercisesProjectsNew
SandboxResourcesBlog
ProfilePricing
Back to async js

Lesson 4

Introduction to Promises

13 stages

1

Why Promises Exist

Read
2

What is a Promise?

Read
3

Promise States Check

Quiz
4

Creating a Promise

Read
5

Handling Success with .then()

Read
6

Your First .then()

Exercise
7

Transform the Value in .then()

Exercise
8

Handling Failure with .catch()

Read
9

Catch a Rejected Promise

Exercise
10

Create a Promise That Can Resolve or Reject

Exercise
11

Cleanup with .finally()

Read
12

Use .finally() for Cleanup

Exercise
13

Promises Review

Quiz

Next step

Move forward when you're ready.

Continue with Promise Chaining.

Next lesson