Answers for "prevent form reload on submit"

html prevent submit from reloading page

<form onSubmit="return false; // Returning false stops the page from reloading">
	<button type="submit"></button>
</form>

jquery submit refresh page stop

$("#prospects_form").submit(function(e) {
    e.preventDefault(); // <==stop page refresh==>
});

prevent form from reloading with preventDefault

document.getElementById("defaultsub").addEventListener("click", function(event){
    if(document.querySelector('form').checkValidity()){
     event.preventDefault();
     console.log("Prevent default submission");
     alert("ALERT!!!!!");
}
})