JSFiddle - React, Tailwind, and code Playground

HTML

<a class="preventable" onclick="defaultAction()">Click ME</a>

JavaScript

window.defaultAction = function () {
    alert("Clicked1")
}

var check = null;
$(document).ready(function () {

    $(".preventable").on("click", function(e) {
        if(check == null) {
            e.stopImmediatePropagation();
            alert("hijacked")
        
            check = true; //confirm here
        } else if(check == true){
            $('.preventable').click();
        }
    })
    
    $(".preventable").on("click", function(e) { alert("clicked2"); })
});