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DataTransferItem.type

只读属性DataTransferItem.type 返回代表拖动数据项的 DataTransferItem 对象的类型（格式）。  type 是一个Unicode字符串，通常由MIME给出，不过不需要MIME类型。

举例一些类型: text/plain 和 text/html.

语法

dataItem.type;

返回值

一个代表拖动数据项类型的 DOMString。

示例

这个例子演示了type 属性的用法。

function drop_handler(ev) {
 console.log("Drop");
 ev.preventDefault();
 var data = ev.dataTransfer.items;
 for (var i = 0; i < data.length; i += 1) {
   if ((data[i].kind == 'string') &&
       (data[i].type.match('^text/plain'))) {
     // This item is the target node
     data[i].getAsString(function (s){
       ev.target.appendChild(document.getElementById(s));
     });
   } else if ((data[i].kind == 'string') &&
              (data[i].type.match('^text/html'))) {
     // Drag data item is HTML
     console.log("... Drop: HTML");
   } else if ((data[i].kind == 'string') &&
              (data[i].type.match('^text/uri-list'))) {
     // Drag data item is URI
     console.log("... Drop: URI");
   } else if ((data[i].kind == 'file') &&
              (data[i].type.match('^image/'))) {
     // Drag data item is an image file
     var f = data[i].getAsFile();
     console.log("... Drop: File ");
   }
 }
}

规范

规范 状态 备注
HTML Living Standard
type		 Living Standard Initial version
HTML 5.1
type		 Recommendation Snapshot of the HTML WHATWG document

浏览器兼容性

BCD tables only load in the browser

另见