fast-defer

  
🏃
Fast Defer
  

Fast Defer is a fast and minimal deferred implementation for javascript.

Table of Contents

• Table of Contents
• Installing
  • Node
  • Browser
  • Url Import
• Getting Started
• Browser Compatibility
• License

Installing

Node

npm install fast-defer # or yarn add fast-defer

const { deferred } = require('fast-defer');
import { deferred } from 'fast-defer';

Browser

<script
  crossorigin
  src="https://cdn.jsdelivr.net/npm/fast-defer@latest/dist/index.umd.js"
></script>

const { deferred } = window.fastDefer;

Url Import

import { deferred } from 'https://cdn.skypack.dev/fast-defer@latest';

Getting Started

A deferred is nothing more than a promise with .resolve() and a .reject() method. You can use it to create a promise that will be resolved or rejected at some point in the future and, probably, in another scope.

import { deferred, isDeferred } from 'fast-defer';

const waitingSomething = deferred();

waitingSomething.then((val) => {
  console.log('Resolved');
});

waitingSomething.catch((error) => {
  console.log('Rejected');
});

// Other file, function or etc
someCallback((response, error) => {
  if (error) {
    waitingSomething.reject(error);
  } else {
    waitingSomething.resolve(response);
  }
});

Browser Compatibility

	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Node.js	Deno	WebView Android	Chrome Android	Firefox for Android	Opera Android	Safari on iOS	Samsung Internet
Promise() constructor	32	12	29*	X	19	8	0.12	1.0	4.4.3	32	29*	19	8*	2.0
Symbol() constructor	38	12	36	X	25	9	0.12	1.0	38	38	36	25	9	3.0

License

Licensed under the MIT. See LICENSE for more informations.