JSFiddle - React, Tailwind, and code Playground

HTML

<button type="button" data-ajax="true" data-accion="hola"> 
  Actualizar
</button>

JavaScript

$( document ).ready(function(){  
    $("[data-ajax=true]").on('click',function(){
        if($(this).data('accion'))
            eval($(this).data('accion') + "()");
    });
});
 
function hola(){
    alert('llegue al hola');
}