How do I access attributes of an html element on server side using javascript?

Question

<button name="myButton" value="someValue" data-value="someDataValue">Click me! </button>

How do I use server-side javascript to access the button's data-value? I only know how to use body-parser to access value by writing req.body.myButton.

Answer 1

You don't. Only the value itself is posted by the browser. You can use client-side JavaScript to populate a hidden field with any extra information you need -- or to do the submission completely in JavaScript.