promise应用实例,Promise.all()，Promise.race()

个人应用记录，方便随时copy use

promise应用实例,Promise.all()，Promise.race()

const repos = [
    {name: 'grit', owner: 'mojombo', description: 'Grit is no longer maintained', id: 1},
    {name: 'jsawesome', owner: 'vanpelt', description: 'Awesome JSON', id: 2},
    {name: 'merb-core', owner: 'wycats', description: 'Merb core: All you need. None you don\t.', id: 3}
]
const owners = [
    {name: 'mojombo', location: 'San Francisco', followers: 123},
    {name: 'vanpelt', location: 'Bay Minette', followers: 1034},
    {name: 'wycats', location: 'Los Angeles, CA', followers: 388}
]
function getReposInfo(ids){
    return new Promise((resolve,reject) => {
        const reposVal = repos.find(vals => vals.id == ids)
        if(reposVal){
            resolve(reposVal)
        }else{
            reject(Error('no fond'))
        }
    })
}
function getOwnersInfo(infos){
    return new Promise((resolve,reject) => {
        const getInfo = owners.find(vals => vals.name == infos.owner)
        if(getInfo){
            infos.owners = getInfo
            resolve(infos)
        }else{
            reject(Error('Not fond this name'))
        }
    })
}
getReposInfo(1)
    .then(res => {
        return getOwnersInfo(res)
    }
)
.then(res => {
    console.log(res)
})
.catch(res => {
    console.error('res')
})

//多个Promise回调方法
function getReposInfo(ids){
	return new Promise((resolve,reject) => {
		const reposVal = repos.find(vals => vals.id == ids)
		if(reposVal){
			resolve(reposVal)
		}else{
			reject(Error('no fond'))
		}
	})
}
function getOwnersInfo(infos){
	return new Promise((resolve,reject) => {
		const getInfo = owners.find(vals => vals.name == infos.owner)
		if(getInfo){
			infos.owners = getInfo
			resolve(infos)
		}else{
			reject(Error('Not fond this name'))
		}
	})
}
const one = new Promise((resolve,reject) => {
	resolve(['1','2'])
})
const two = new Promise((resolve,reject) => {
	resolve({name:'ted',age:'19'})
})
Promise
	// .all([one,two]) //等待所有Promise resolve后执行then，否则catch
	.race([one,two]) //第一个响应resolve就进入then。或者第一个reject就直接进入catch。
	.then(response => {
		const [a,b] = response
		console.log(a)
		console.log(b)
	})
	.catch(response => {
		console.error(response)
	})