How to automatically change the proxy address?

Question

JavaScript

Hey! Tell me pliz how to implement automatic change of proxy address on http request?
There is a list of proxy addresses in a text file and one address is randomly taken from it into a variable.
The bottom line is that now, if during the request there are any errors that are displayed in the console in the server response, or a non-working proxy comes across, the requests continue to go and the error may repeat. How to make it so that in such a situation a new proxy address is immediately substituted so that requests work normally?
Code below:

var proxyList = fs.readFileSync('proxy-list.txt').toString().split("\n");
var randomIp = Math.floor(Math.random() * proxyList.length);
var currentIp = proxyList[randomIp]

setInterval(function() {

  Request.get({
      url: 'https://www.example.com/',
      json: true,
      headers: {'User-Agent': 'request'},
      proxy: 'http://' + currentIp // случайный proxy из массива
    }, (err, res, body) => {
      if (err) {
        console.log('Error:', err);
      } else if (res.statusCode !== 200) {
        console.log('Status:', res.statusCode);
      } else {
  	    console.log(body);
      }
  });

}, 2000);

Answer 1

You need all the code, so it's not clear what you want to do.
Will remove the "bad" proxy from the array
newProxies = proxyList.filter(i => currentIp != i)