Closed Dynamically perform

[Netflix]

paano ko po magagawa to, each time mag iinput ang user sa textbox , mag checheck automatically through php script.. and without refreshing the page po sana
This is the input.

<label>Precinct</label>
                                                    <input type="text" name="precinct" id="precint" class="form-control" required>

gusto ko sana mag perform tong script na to

<?php
include('../Config/config.php');
$query="SELECT * from voters WHERE precinct="$_POST['precinct']";
$passed=mysqli_query($mysqli,$query);


if(mysqli_num_rows($passed)>200)
{
echo "precinct full!"

}



?>

 

[Impostor Syndrome]

Async validation tawag dun. Gawin mo yung ajax call sa keypress event ng input field.
something like this...

[

const fetchPrecinct = () => {
  return $.ajax({...params})
}

$('.precinct-field').keypress(e => {
 $.debounce(250, fetchPrecinct(e))
})