getify/TNG-Hooks

Feature: `useDeferred()`

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#17 opened on Jan 18, 2019

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enhancementhelp wantedquestion

Description

The useDeferred() hook creates and stores in a state slot (via useState(..)) an object, commonly called a deferred, which is a promise and also its resolve(..) / reject(..) capabilities.

function foo() {
   var { pr, resolve, reject } = useDeferred();
}

Unclear if there's any pattern that would benefit from passing a value to useDeferred(..). Need to further consider.

Contributor guide

Tech stack
javascript
Domain
toolingdeveloper experience
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
mostly clear
Prerequisites
Understanding of JavaScript promisesFamiliarity with React hooks conceptKnowledge of TNG Hooks codebase
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
30
Research direction
First, examine the existing `useState` and other hooks in TNG Hooks to understand the pattern. Then, determine if `useDeferred` should accept a value argument by considering use cases where an initial value might be needed. Look at discussion in related issues or similar implementations like React's `useDeferredValue`. The implementation likely resides in the `src/hooks` directory.