How to get ID off Onclick Button?

Question

I want to get a button onclick ID and apply it to another function.

<input type="button" onclick="recordToFilename();" id="submitdis" value="Enter Discount Price" /> 

And Apply it to

document.getElementById('discounts').innerHTML = "Discount : $" + ( - discountprice).toFixed(2);

Please check Codepen

Thanks for help

   document.getElementById("submitdis")
   function recordToFilename() {
   var input = document.getElementById('submitdis'),
   discount12 = input.value;

Answer 1

Try passing argument to your onclick function

<input type="button" onclick="recordToFilename(this);" id="submitdis" value="Enter Discount Price" /> 


 function recordToFilename(ele)
 {
       console.log(ele.id);
 }

Answer 2

Try:

function recordToFilename(e){
   $(this).attr("Id")

  //or:
   e.Id
}