Detailed example of quickly obtaining Ajax communication objects

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:

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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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