How to check file size before upload in javascript

How to check file size before upload in javascript

In this article, we will explain to you how to check file size before upload in Javascript. when we need to client-side validation, at that time we are using such an example.

Now, we get the file size on the change event using the Upload function, and after we will check the file size if the file size is greater than 2MB then it will return the error messages otherwise return the success message.

So you can see below our example.

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