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Detailed example of quickly obtaining Ajax communication objects

小云云
小云云Original
2017-12-26 11:15:511597browse

This article mainly brings you a method to quickly obtain Ajax communication objects. The editor thinks it’s pretty good, so I’ll share it with you now and give it as a reference. Let’s follow the editor to take a look, I hope it can help everyone.

Examples are as follows:


##

function getXHR() {
  // 该方法用于获取Ajax通信对象
  var xhr = null;
  if (window.XMLHttpRequest != null &&
  window.XMLHttpRequest != undefined) {
  xhr = new XMLHttpRequest();
  } else {
  / 兼容早期的IE浏览器
  xhr = new ActiveXObject("Microsoft.XMLHTTP");
  }
  return xhr;
}

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