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Create a ajax
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if (window.ActiveXObject) { xhr = new ActiveXObject("Microsoft.XMLHTTP"); } else if (window.XMLHttpRequest) { xhr = new XMLHttpRequest(); } xhr.open("post",url, true); xhr.onload = function (evt){ var data = JSON.parse(evt.target.responseText); // TODO AFTER console.log(data) } xhr.onerror = () { console.log('ERROR') }; xhr.upload.onloadstart = (){ console.log('start'); }; xhr.send(form);
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有了它 ,可以轻轻松松把数据传给后端。
MDN formData
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let formData = new FormData(); formData.append('username', 'Chris');
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