Axios spread() with unknown number of callback parameters

问题

I need to process an unknown number of AJAX requests (1 or more) with axios, and I am not sure how to handle the response. I want something along the lines of:

let urlArray = [] // unknown # of urls (1 or more)

axios.all(urlArray)
.then(axios.spread(function () {
  let temp = [];
  for (let i = 0; i < arguments[i].length; i++)
    temp.push(arguments[i].data);
}));

where arguments will contain the callback responses sent by axios. The problem is that arguments contains the given string urls instead of the actual responses. How can I resolve this problem?

回答1:

You somewhere will need to make the actual requests. And then don't use spread but only then to receive the array of results:

let urlArray = [] // unknown # of urls (1 or more)

let promiseArray = urlArray.map(url => axios.get(url)); // or whatever
axios.all(promiseArray)
.then(function(results) {
  let temp = results.map(r => r.data);
  …
});

来源：https://stackoverflow.com/questions/37149466/axios-spread-with-unknown-number-of-callback-parameters