fevangelou
5/26/2011 - 5:39 PM

get a supported XHR instance

get a supported XHR instance

{
  "name": "getXHR",

  "description": "get a supported XHR instance",

  "keywords": [
    "ajax",
    "XHR",
    "cross-browser",
    "XmlHttpRequest"
  ]
}
function(a){for(a=3;a--;)try{return new(this.XMLHttpRequest||ActiveXObject)(["Msxml2","Msxml3","Microsoft"][a]+".XMLHTTP")}catch(e){}}
function(
  a // cursor placeholder
){
  for(                    // for all a
    a = 3;                // from 3
    a--;                  // to 0,
  ) try {                 // try
    return new(           // returning a new
      this.XMLHttpRequest // XMLHttpRequest (w3c)
      ||                  // or
      ActiveXObject       // ActiveXObject (MS)
    )([                   // reflecting
      "Msxml2",           // the
      "Msxml3",           // various
      "Microsoft"][a] +   // MS flavors
      ".XMLHTTP"          // and appropriate suffix,
    )
  }
  
  catch(e){}              // and ignore when it fails.
}
            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
                    Version 2, December 2004

 Copyright (C) 2011 Jed Schmidt <http://jed.is>

 Everyone is permitted to copy and distribute verbatim or modified
 copies of this license document, and changing it is allowed as long
 as the name is changed.

            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION

  0. You just DO WHAT THE FUCK YOU WANT TO.