Promise.defer
promise.defer is a lightweight NPM package that allows you to create promise synchronously.
Installation
npm install --save promise.defer
API
type Deferred<T> = {
reject(err: Error): void;
resolve(value: T): void;
promise: Promise<T>;
}
export default function promiseDefer(): Deferred;Example Usage
import fs from 'fs'
import promiseDefer from 'promise.defer'
export default function doSomething() {
const deferred = promiseDefer()
fs.readFile('/etc/passwd', function(error, contents) {
if (error) {
deferred.reject(error)
} else {
deferred.resolve(contents)
}
})
return deferred.promise
}CommonJS consumers may need to import it like:
const {default: promiseDefer} = require('promise.defer')License
This package is licensed under the terms of MIT License. See the LICENSE file for more info.
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