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@bitty/deferred
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@bitty/deferred
It provides a function to create Deferred objects. They contain a Promise and methods to imperatively resolve or reject it.
📦 Distributions in ESM, CommonJS, UMD and UMD minified formats.
⚡ Lightweight:
🔋 Bateries included:
Promise
, but you can use a polyfill in unsupported environments.🏷 Safe:
This library is published in the NPM registry and can be installed using any compatible package manager.
npm install @bitty/deferred --save
# For Yarn, use the command below.
yarn add @bitty/deferred
This module has a UMD bundle available through JSDelivr and Unpkg CDNs.
<!-- For UNPKG use the code below. -->
<script src="https://unpkg.com/@bitty/deferred"></script>
<!-- For JSDelivr use the code below. -->
<script src="https://cdn.jsdelivr.net/npm/@bitty/deferred"></script>
<script>
// UMD module defines "createDeferred" in global/window scope.
console.log(createDeferred);
//=> "[Function: createDeferred]"
let deferred = createDeferred();
deferred.promise.then(() => {
console.log('It was okay.');
});
deferred.resolve();
</script>
This module default exports createDeferred
, which is a factory function that creates Deferred
objects.
import createDeferred from '@bitty/deferred';
const deferred = createDeferred<boolean>();
Deferred
objects exposes a Promise
and methods to reject or resolve it.
import createDeferred, { Deferred } from '@bitty/deferred';
let deferred: Deferred<number>;
// ...
deferred.promise
.then(value => console.log(`You received $ ${value.toFixed(2)}!`))
.catch(reason => console.error(`Couldn't receive because of `, reason));
deferred.resolve(10);
//=> It logs "You received $ 50.00!" in the console.
deferred.reject(new Error('The account number is invalid.'));
//=> Won't log anything because promise is already resolved.
We also export the Deferred
interface. Which simply defines the promise property (an instance of Promise
) and the methods that change it.
interface Deferred<T> {
readonly promise: Promise<T>;
reject(reason: unknown): void;
resolve(value: T | PromiseLike<T>): void;
}
Released under MIT License.
FAQs
It provides a function to create Deferred objects. They contains a Promise and methods to imperatively resolve or reject it.
The npm package @bitty/deferred receives a total of 5 weekly downloads. As such, @bitty/deferred popularity was classified as not popular.
We found that @bitty/deferred demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 2 open source maintainers collaborating on the project.
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