Ajax Method for retrieving XMLHttp objects,

Ajax Method for retrieving XMLHttp objects,

This example describes how to obtain an XMLHttp object through Ajax. We will share this with you for your reference. The details are as follows:

XMLHttp object is used in Ajax. I have seen various methods of getting this object, and I think this method is the most elegant. First, consider the appropriate browser; second, consider the priority Loading Order, from the high version to the lower version test, and finally if not found, throw an exception.

function FactoryXMLHttpRequest() {  if(window.XMLHttpRequest) {    return new XMLHttpRequest();  }else if(window.ActiveXObject) {    var msxmls = new Array(      'Msxml2.XMLHTTP.5.0',      'Msxml2.XMLHTTP.4.0',      'Msxml2.XMLHTTP.3.0',      'Msxml2.XMLHTTP',      'Microsoft.XMLHTTP');    for (var i = 0; i < msxmls.length; i++) {      try {        return new ActiveXObject(msxmls[i]);      } catch (e) {      }    }  }  throw new Error("Could not instantiate XMLHttpRequest");}

I hope this article will help you with ajax programming.

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