When I press enter key it submits the form... I want to prevent submitting form but e.preventDefault function is not working either.

enterKeyFunction.addEventListener('keyup',  async function (e) {
    
   e.preventDefault()
 
    let namee = document.getElementById("search___product").value
    console.log(namee)
    if(namee == "")
    {
      alert("Please enter the product name...!!")
    }
    else {
//do something else 
}