JSFiddle - React, Tailwind, and code Playground

HTML

<div>Click me</div>

JavaScript

jQuery.expr[':'].test = function(el){console.log('selector called on original object');}
var $sub = jQuery.sub();
$sub.expr[':'].test2 = function(el){console.log('this text never shows up!');}

jQuery('div').on('click', function(){
    jQuery(':test');           //works
    console.log('now the sub object');            
    $sub(':test');             //works
    console.log("That's it, sub selector doesn't work");
    jQuery(':test2');          //doesn't work
    $sub(':test2');            //doesnt' work
});