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Introduction

What’s This Course About?Introduction to JavaScript Promises

Basics of Promises

Fundamentals of Promises

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/

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Non-Promise Thenables

Non-Promise Thenables

Learn about non-promise thenables in detail.

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Non-promise thenables

Both Promise.resolve() and Promise.reject() also accept non-promise thenables as arguments. When passed a non-promise thenable, these methods create a new promise that is called after the then() function. A non-promise thenable is created when an object has a then() method that accepts a resolve and a reject ...