Synchronous request

sync.js

  // Synchronous request to get 3 unique messages from zalora.sg
  var messages = [];
  while(messages.length < 3) {
    $.ajax({
        url: 'https://www.zalora.sg/ajax/catalog/justforyou/?feedName=recentlyviewed&brandName=&size=20&category=&userId=10214339066013667&engine=datajet',
        async: false
    })
          .done(function(msg){
            if(messages.indexOf(msg) == -1) {
              messages.push(msg);
            }
          })
          .fail(function() {
            alert( "can not get message from zalora");
          });
  }
  console.log(messages);