Passing an Argument to a Promise (e.g. Chaining Two Promises)

let promise1 = new Promise( (resolve) =❯ {
//stuff you going to do

// what is returned
resolve('test2')
});
let promise2 = (my_string) =❯ {
return (
new Promise( (resolve) =❯ {
// do some more stuff

// what to return
resolve(my_string +' test3')
})
)
};

(async() =❯ {
let result1 = await promise1;
let result2 = await promise2(result1);
console.log(result2);
})()
===Additional Promise Usage===

# Results in an array
Promise.all([promise2, promise2, promise2])
.then( (results) =❯ { console.log(results) } );

# First one to resolve
Promise.race([promise1, promise2, promise3])
.then( (value) =❯{ console.log(value) } );

# Cancel the promise if time too long
Promise.reject('my_string ')

# Returns state depends on another promise
Promise.resolve(promise1)

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Видео Passing an Argument to a Promise (e.g. Chaining Two Promises) канала ZeroLife