Read a list of proxies from text file and format them for JSON

proxy.js

const fs = require('fs');

const proxies = fs.readFileSync('proxies.txt', 'utf-8');
let splitProxies = proxies.split('\n');

let output = splitProxies.map((proxy, index) => {
  sanatizeProxy = proxy.replace('\r', '');
  if (splitProxies[index + 1] != undefined) {
    return `"${sanatizeProxy}",`;
  }
  return `"${sanatizeProxy}"`;
});

console.log(output.join('\n'));