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javascript - 如何在没有jQuery的情况下进行AJAX调用?(How to make an AJAX call without jQuery?)

如何在不使用jQuery的情况下使用JavaScript进行AJAX调用?

  ask by discky translate from so

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With "vanilla" JavaScript:(使用“香草” JavaScript:)

<script type="text/javascript"> function loadXMLDoc() { var xmlhttp = new XMLHttpRequest(); xmlhttp.onreadystatechange = function() { if (xmlhttp.readyState == XMLHttpRequest.DONE) { // XMLHttpRequest.DONE == 4 if (xmlhttp.status == 200) { document.getElementById("myDiv").innerHTML = xmlhttp.responseText; } else if (xmlhttp.status == 400) { alert('There was an error 400'); } else { alert('something else other than 200 was returned'); } } }; xmlhttp.open("GET", "ajax_info.txt", true); xmlhttp.send(); } </script> With jQuery:(使用jQuery:) $.ajax({ url: "test.html", context: document.body, success: function(){ $(this).addClass("done"); } });

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