big-show
8/8/2019 - 4:03 AM

macrotask and microtask

macrotask and microtask

{   
        setTimeout(function(){
            console.log(8);
            setTimeout(function(){
                console.log(9);
                new Promise(function(resolve){
                    resolve();
                }).then(function(){
                    console.log(10);
                })
            },0);
            
        },20)
        console.log(1);
        new Promise(function(resolve)
        {
            console.log(2);
            resolve();
        }).then(function(){
            console.log(4);
        })
        setTimeout(function(){
            console.log(5);
            new Promise(function(resolve){
                console.log(6);
                resolve();
            }).then(function(){
                console.log(7);
            })
        },0)
    console.log(3);
}