vid-59.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        // there is a special syntax to work with promises in javascript 
        // async function harry(){
        //     return 2
        // }

        // harry().then((x)=>{
        //     console.log(x)
        // })

        // the above async fucntion always returns a promise even if a cosntant is returned we can alos use the handler with async function 

        async function  harry(){
        let delhiw = new Promise((resolve,reject)=>{
            setTimeout(()=>{
                resolve("value 21")
            },1000)
        })

        let noidaw = new Promise((resolve,reject)=>{
            setTimeout(()=>{
                resolve("value 27")
            },2000)
        })

        // delhiw.then(alert)
        // noidaw.then(alert)

        console.log("we are fetching delhi weather plze wait...")
        let delhiweather = await delhiw
        console.log("fetched delhi weather" + delhiweather)
        console.log("we are fetching noida weather plze wait...")
        let noidaweather = await noidaw
        console.log("fetched noida weather" + noidaweather)  

        return [delhiweather + noidaweather]
    }

    const cherry=async()=>{
        console.log("i am cherry")
    }
    const main1 = async()=>{

        console.log("welcome to weather control room")
        let a =  await harry()
        let b =  await cherry()
    }
    main1()
    

    </script>
</body>
</html>