The
3
of
insanity!
Writing JavaScript!
Let's talk about asynchronous in JavaScript
synchronous flows are easy ...
synchronous flows are easy ...
Blocking is easy :D
synchronous flows are easy ...
but we don't want to block!
we want to wait :)
The Pyramid of DOOM!
The Pyramid of DOOM!
Promise Waiting
Promise chain - HELL
A better looking Promise chain - HELL
try and handle the error cases on this one.
Promise
What I want
What WE have :)
Still not up to date - the new way of waiting...
Generator functions
A generator is a function that can return multiple values.
Generator functions
to the code!
Generator - split personality
Generator - the untapped power
Generator - the untapped power
All of that is a little to much and so what do we do ?
Get to the future... which is now!
Async - wirting code that looks like it blocks but it actually waits.
What I want
What We have :)
Async - is this the promise land ?
Async - maybe ?! async I/O
2. we can't use async within an async function
go to code!
1. we can't use async for flows that require parallel requests
We are missing something ...
Observable
async function* - the future!
To insanity and beyond!
Copy of Three stages of insanity
By joao martins
