Code to determine whether multiple input type=files have selected files_jquery

There are multiple <input type="file" name="uploadfile" contentEditable="false" style="width:80%"> in the form.
When submitting the form, you need to determine that at least one of the inputs has been selected. Good document.

Copy code The code is as follows:

<input type="file" name="uploadfile " contentEditable="false" style="width:80%"><br>
<input type="file" name="uploadfile" contentEditable="false" style="width:80%"&gt ;<br>
<input type="file" name="uploadfile" contentEditable="false" style="width:80%"><br>
<input type="file " name="uploadfile" contentEditable="false" style="width:80%"><br>
<input type="file" name="uploadfile" contentEditable="false" style="width :80%">

Use jQuery to judge:

Copy code The code is as follows:

var fileFlag = false;
$("input[name='uploadfile']").each(function(){
if($(this).val()! ="") {
fileflag = true;
return false;
}
});
if(fileFlag) {
alert("The file has been selected") ;
}

As long as fileFlag is true, you can exit the each loop and there is no need to judge the remaining input.
Use return false in each to exit the loop, use return true to end the current loop and proceed to the next loop.