JSFiddle - React, Tailwind, and code Playground

HTML

<form id='test' method="post" action="">
    <div>
          <div>Donation Amount:</div>
          <input name="amount" type="text" id="get_donation_amt" required="required" />
     </div>   
      <input type="submit" value="submit" onClick="form_submit(this.value)">
    <input type="submit" value="cancel" onClick="form_submit(this.value)">
     </form>

JavaScript

document.getElementById('test').addEventListener('submit',function (event) {
 if (event.preventDefault) { 
      event.preventDefault();
   } else {
      event.returnValue = false; 
   }
})

form_submit= function (submited_by) {

  if(submited_by == 'submit'){
    alert('Submited')
   }else if (submited_by == 'cancel'){
   alert('cancelled')  
  }

}