Set the number of file allowed to be uploaded

Question

How to set limit on the number of file to upload( let say a max of 3 files)

Answer 1

From:
https://stackoverflow.com/questions/18201811/how-can-restrict-user-to-upload-max-10-files-at-once

<input id="files" type="file" name="files[]" multiple="multiple" onchange="checkFiles(this.files)">

function checkFiles(files) {
if(files.length>10) {
alert("length exceeded");
files.slice(0,10);
return false;
}
}

Answer 2

Set a flag and a counter
For each action, increase counter by one
When counter reaches three, set the flag as true
Enclose the action in a checking and execute only when the flag is false.

Answer 3

JS
var flag = false;
var counter = 0;
if (!flag) {
...do something...
if(++counter==3){flag=true;}
}

Answer 4

Sorry I don't know about form.
I hope someone else can help you.

Answer 5

ok

Answer 6

please can you write some code.appreciate

Answer 7

<form>
<input type=“file” name=“file[]” multiple>
</form>

please add the js handler to the form

Answer 8

thanks