22 lines
693 B
JavaScript
22 lines
693 B
JavaScript
|
//
|
||
|
|
// The Promise.all() function accepts an array of promise
|
||
|
|
// instances and returns a new promise which is fulfilled
|
||
|
|
// once all the promises in the array are fulfilled or
|
||
|
|
// rejected as soon as any of the promises in the array
|
||
|
|
// are rejected.
|
||
|
|
//
|
||
|
|
// The Promise.race() function accepts an array of promise
|
||
|
|
// instances and is fulfilled or rejected as soon as one of
|
||
|
|
// the promises in the array is fulfilled or rejected.
|
||
|
|
//
|
||
|
|
|
||
|
|
var p1 = new Promise((resolve, reject) => {
|
||
|
|
setTimeout(resolve, 2000, 'first')
|
||
|
|
})
|
||
|
|
|
||
|
|
var p2 = new Promise((resolve, reject) => {
|
||
|
|
setTimeout(resolve, 3000, 'second')
|
||
|
|
})
|
||
|
|
|
||
|
|
Promise.all([p1, p2]).then(console.log)
|
||
|
|
Promise.race([p1, p2]).then(console.log)
|