KOA2 Grammar Experience

KOA2: Solve asynchronous problems with es678 synchronous notation, solve callback hell problem with express, const KOA = require ("Koa")//NPM Install latest version of Koaconst app = new Koa () KOA2 creating the server is done by means of new
Const Asyncio = () =>{return new Promise (resolve = SetTimeout (resolve,500))}const mid = () = Async (Ctx,next) =&G T {ctx.body = "mark" await next () Ctx.body + = "Done"}
App.use (Mid ()) App.use (Async (Ctx,next) = {await Asyncio () Ctx.body + = "Saved" await Next ()})
App.listen (3000)
Output: Mark saved done

KOA2 Grammar Experience