Promise State Definitions

Hey guys ! Once again I'm back with an indepth video were we discuss ES6 Promises. I know that async/await is the new way people prefer to deal with async code but I think it's always good to know about callback functions, promises, and promise methods.

Also In this video we take a look at Promise.allSettled( ) method which is part of ECMAScript 2020 and can be used in the latest release of Node.js.

In this video we'll have a look at how to convert a request which uses callback functions to request that returns a promise. We'll have a look at how to avoid callback hell by promise chaining.
We'll then have a look at promise methods like: Promise.al(),Promise.race(),Promise.any(),Promise.allSettled(),

For those of you who don't use node.js this is a basic template to follow along.
Code Pen : https://codepen.io/midasxiv/pen/RwwoxvX
Make sure you view the 'console' somewhere in the bottom left.

Video Index:

• 01:44 - Request Package. ( node.js )
• 03:30 - Request Callback function.
• 06:10 - Promise Constructor / Convert callback to promise. (pure JavaScript )
• 11:20 - Promise Chaining & Promise.then()
• 12:43 - Promise.catch() & Promise.reject()
• 14:23 - Promise.all()
• 17:30 - Promise.race()
• 19:30 - Promise.any()
• 19:30 - Promise.allSettled()
• 22:00 - Outro

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YouTube video :