18-promises-chaining.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>promises chaining in javaScript </title>
</head>
<body>
    <script>
        //promise chaining
let promises1=new Promise((resolve,reject)=>{
    setTimeout(()=>{
        console.log("the promises is resloved")
        resolve(55);

    },5000)

})

promises1.then((result)=>{
    console.log("the result is "+ result);
    let promises2= new Promise((resolve,reject)=>{
        setTimeout(() => {
            console.log("the promises 2 is resolvded")
            resolve(77);
        }, 5000);
    })

    return promises2
}).then((result)=>{
    console.log("the result is "+ result);
    return new Promise((resolve,reject)=>{
        setTimeout(() => {
            console.log("the promises 3 is resolvded")
            resolve(99);
        }, 5000);
    })

    
}).then((value)=>{
    console.log("the result of promises is "+ value)
})


    </script>

    
</body>
</html>