4.2.1 • Published 1 year ago
vait v4.2.1
异步编程的一些实用函数。
安装
yarn add vait
# or
npm install --save vait
示例
import { timeout } from 'vait'
timeout(1000).then(() => {
console.log('hello after 1000ms')
})
import { Sequence, timeout } from 'vait'
const sq = Sequence()
function randomNumber(range) {
Math.floor(Math.random() * range);
}
sq(async () => {
await timeout(randomNumber(100))
console.log('step one')
})
sq(async () => {
await timeout(randomNumber(100))
console.log('step two')
})
sq(async () => {
await timeout(randomNumber(100))
console.log('step three')
})
// 永远按调用顺序输出:
// step one
// step two
// step three
import { Wait } from 'vait'
const [wait, go] = Wait()
wait.then(str => {
// 如果不执行 go, 此函数将永远不会执行
console.log(str)
})
go('hello, world') // 支持一个参数传入
go() // 因为是调用了 Promise resolve,所以前面 console.log(str) 只会执行一次
// 一个"卡"住运行时的用法
import { Wait } from 'vait'
const [waiting, go] = Wait()
;(async () => {
const value = await waiting
console.log('value accepted:', value)
})()
setTimeout(() => {
// 一秒后才会出现 value accepted: 3.1415926
go(3.1415926)
}, 1000)
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