Native JavaScript writes Ajax

Front-end javascript:

Function ajaxget (url, obj)  {    var request;    if (Window. XMLHttpRequest)  {        request = new  XMLHttpRequest ();    } else {         Request = new activexobject (' Microsoft.XMLHTTP '); //  compatible ie    }     request.onreadystatechange = function ()  {         if (request.readystate === 4)  { // 4  request Complete              if (request.status === 200)  { //  200  page successfully loaded                  console.log (Request.responsetext); //  success   Return the resulting text             &nBSP;}  else {                 console.log (request.status); //  failure   Return status code   such as  404             }        } else {             console.log (' Requesting ');         }    }    /*  Parse Parameter  */     str =  '? ';     for (key in obj)  {        str  +=  (key +  ' = '  + obj[key] +  ' & ');    }     str = str.substr (0, str.length - 1);     /*   Send  */    request.open (' GET ',  url + str);    request.send ();} Ajaxget (' ajax.php ', {     ' type ':  ' get ',     ' data ':  ' Test '});  //get-test

Back-end PHP:

<!--ajax.php--><?php echo $_get[' type ']. ‘-‘ . $_get[' data ';

Native JavaScript writes Ajax

This article from "Do not know not to ask" blog, please be sure to keep this source http://mazey.blog.51cto.com/12997993/1975314

Native JavaScript writes Ajax