system_assignation/node_modules/fastq/test/example.ts

82 lines
1.4 KiB
TypeScript

import * as fastq from '../'
import { promise as queueAsPromised } from '../'
// Basic example
const queue = fastq(worker, 1)
queue.push('world', (err, result) => {
if (err) throw err
console.log('the result is', result)
})
queue.push('push without cb')
queue.concurrency
queue.drain()
queue.empty = () => undefined
console.log('the queue tasks are', queue.getQueue())
queue.idle()
queue.kill()
queue.killAndDrain()
queue.length
queue.pause()
queue.resume()
queue.saturated = () => undefined
queue.unshift('world', (err, result) => {
if (err) throw err
console.log('the result is', result)
})
queue.unshift('unshift without cb')
function worker(task: any, cb: fastq.done) {
cb(null, 'hello ' + task)
}
// Generics example
interface GenericsContext {
base: number;
}
const genericsQueue = fastq<GenericsContext, number, string>({ base: 6 }, genericsWorker, 1)
genericsQueue.push(7, (err, done) => {
if (err) throw err
console.log('the result is', done)
})
genericsQueue.unshift(7, (err, done) => {
if (err) throw err
console.log('the result is', done)
})
function genericsWorker(this: GenericsContext, task: number, cb: fastq.done<string>) {
cb(null, 'the meaning of life is ' + (this.base * task))
}
const queue2 = queueAsPromised(asyncWorker, 1)
async function asyncWorker(task: any) {
return 'hello ' + task
}
async function run () {
await queue.push(42)
await queue.unshift(42)
}
run()