JavaScript Promises The Complete Guide

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JohnTeacher

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Course Overview

Learn how to program with modern JavaScript, from the very beginning to more advanced topics
Learn all about OOP (object-oriented programming) with JavaScript, working with prototypes & classes
Learn how to create real-world front-end applications with JavaScript (quizes, weather apps, chat rooms etc)
Learn how to make useful JavaScript driven UI components like popups, drop-downs, tabs, tool-tips & more.
Learn how to use modern, cutting-edge JavaScript features today by using a modern workflow (Babel & Webpack)
Learn how to use real-time databases to store, retrieve and update application data
Explore API’s to make the most of third-party data (such as weather information)

Course Content

1. Introduction
- 1. Introduction
2. Promise Basics
- 1. Why We Need Promises
- 2. What Is a Promise
- 3. Creating a Promise
- 4. Status of the Promise
3. Working with Promises
- 1. Promise Methods Then
- 2. Chaining Promises
- 3. Promise Methods Catch
- 4. How to Promisify any Function in JavaScript
- 5. What is a Callback Hell and How to Avoid It
- 6. Making HTTP Requests Using Fetch API
- 7. Static Methods Promise.resolve and Promise.reject
4. Handling Multiple Asynchronous Operations
- 1. Static Methods Promise.all
- 2. How Promise.all Handles Rejections
- 3. Static Methods Promise.race
5. Unit Testing of Promises
- 1. Setting Up the Testing Environment
- 2. Writing Unit Tests
- 3. Timeouts in Unit Tests
- 4. Multiple Assertions in One Test Case
6. Summary
- 1. Summary

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