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.