0% completed

All LessonsFree Lessons (4)

Introduction

What’s This Course About?Introduction to JavaScript Promises

Basics of Promises

Fundamentals of Promises Handlers Handlers Executed as Microtasks Unsettled Promises Settled Promises Non-Promise Thenables Summary: Basics of Promises Quiz: Basics of Promises

Chaining Promises

Fundamentals of Chaining Promises Promise Chains with the finally() Method Return Values in Promise Chains Return Promises in Promise Chains Return Promises from finally()Summary: Chaining Promises Quiz: Chaining Promises

Working with Multiple Promises

The Promise.all() Method When to Use the Promise.all() Method The Promise.allSettled() Method When to Use the Promise.allSettled() Method The Promise.any() Method When to Use the Promise.any() method The Promise.race() Method When to Use Promise.race()Summary: Working with Multiple Promises Quiz: Working with Multiple Promises

Async Functions and Await Expressions

Async Functions What Makes Async Functions Different?Await Expressions Await Expressions and Promises Await Expressions and Loops Summary: Async Functions and Await Expressions Quiz: Async Functions and Await Expressions

Tracking Down the Unhandled Rejections

How to Detect an Unhandled Rejection

Web Browsers and Unhandled Rejections

Detecting Unhandled Rejections with Node.js

Summary: Tracking Down the Unhandled Rejections

Quiz: Tracking Down the Unhandled Rejections

Conclusion

JavaScript Promises/

...

/

Quiz: Tracking Down the Unhandled Rejections

Quiz: Tracking Down the Unhandled Rejections

Test your knowledge of tracking down unhandled rejections.

We'll cover the following...

Technical Quiz

1.

Which event is emitted when a promise is rejected and no rejection handler is called within one turn of the event loop?

A.

rejectionhandled

B.

unhandledrejection

C.

type

D.

reason

1 / 3