es6 promisify:将基于回调的javascript转换为ES6 Promises 源码

es6-promisify 使用样板回调函数将基于回调的函数转换为ES6 / ES2015 Promises。 安装 用安装 npm install es6-promisify 例子 const { promisify } = require ( "es6-promisify" ) ; // Convert the stat function const fs = require ( "fs" ) ; const stat = promisify ( fs . stat ) ; // Now usable as a promise! try { const stats = await stat ( "example.txt" ) ; console . log ( "Got stats" , stats ) ; } catch ( err ) { console