FormData delete()
delete() 方法刪除一個具有指定鍵名的鍵值對。
關於 FormData 物件的總體介紹參閱 FormData 物件 一章節。
語法結構:
[JavaScript] 純文字檢視 複製程式碼formData.delete(key)
引數解析:
(1).key:FormData 物件儲存資料的鍵名。
程式碼例項:
[JavaScript] 純文字檢視 複製程式碼執行程式碼let formdata = new FormData(); formdata.append("name","螞蟻部落"); formdata.append("age",4); formdata.append("url","www.softwhy.com"); formdata.delete("age"); console.log(formdata.get("age"));
程式碼執行效果截圖如下:
上述程式碼刪除鍵名為 "name" 的鍵值對。
此方法可以刪除所有指定鍵名的鍵值對。
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