Establish Callback and Closure patterns Around Async Browser Behaviors

Overview

JavaScript is full of inconsistent APIs. Wrapping those APIs in functions allows you to have full control over how to configure them and make them more reusable.
This becomes even more beneficial when dealing with the async nature of JavaScript. You'll learn how a broadcaster is a function that wraps another function (which we call listeners) and modifies the behavior. We will build up this pattern in a way that allows you to compose broadcasters together making your code more reusable.
You're in Section 02 of Composing Closures and Callbacks in JavaScript

Syllabus

Create a Function to Configure setTimeout
Return a Function to Cancel an Async Behavior
Wrap addEventListener in a Function for More Control
Create a Utility Function to Control setInterval
Combine Multiple Async Behaviors with a Merge Function
Use Lodash Curry When Functions Return Functions
Match Function Requirements with Lodash Partial and Flip
Create a Buffer to Pair Values Together with Zip
Pass an Array to a Callback with a forOf Function
Pass a Done Symbol when an Async Function is Done

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John Lindquist

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