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axios為什么還要promise封裝一次

JavaScript

BIG陽 2019-01-04 17:12:01

axios返回的就是一個promise對象為什么有很多人還是會promise再封裝一次呢？例如：export function get (url, data = {}) { return new Promise((resolve, reject) => { axios.get(url, {params: data}) .then(response => { resolve(response.data) }, err => { reject(err) }) }) }

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2 回答

qq_慕粉3583234

TA貢獻1條經驗獲得超0個贊

export?function?get(url,?data?=?{})?{

??return?new?Promise((resolve,?reject)?=>?{
????axios.get(url,?{params:?data}).then(response?=>?{
??????resolve(response.data)
????},?err?=>?{
??????reject(err)
????})
??})
??????.then(res?=>?{
????????return?new?Promise((resolve,?reject)?=>?{
??????????axios.get(url,?{params:?data}).then(response?=>?{
????????????resolve(response.data)
??????????},?err?=>?{
????????????reject(err)
??????????})
????????})
??????})
??????.then.....
}

我猜測是為了多次axios

反對回復 2021-05-25