JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>

JavaScript

var URL = ['https://jsonplaceholder.typicode.com', 'https://jsonplaceholder.typicode.com','https://jsonplaceholder.typicode.com','https://jsonplaceholder.typicode.com'];

var Result = [];
	function recur(){
  	if(URL.length !=0 ){
    	var _url = URL[0]
      $.ajax({
        url: _url + '/users',
        method: 'GET'
      }).then(function(data) {
      	Result = Result.concat(data)
              URL.splice(0,1);
              recur();

      });
    }
    else console.log(Result)
  }
  
  recur()