JSFiddle - React, Tailwind, and code Playground

by apasaja

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>

JavaScript

function UrlExists(url, cb){
  jQuery.ajax({
    url:      url,
    dataType: 'text',
    type:     'GET',
    complete:  function(xhr){
      if(typeof cb === 'function')
        cb.apply(this, [xhr.status]);
    }
  });
}

UrlExists('http://www.google.com.com', function(status) {
  if(status === 200) {
    console.log('pass')
  } else {
    console.log('fail')
  }
});