JSFiddle - React, Tailwind, and code Playground

HTML

<ul>
    <li id="one1234two">Hello World!</li>
    <li></li>
    <li></li>
    <li></li>
    <li></li>
</ul>

JavaScript

$.fn.regexFindId = function(re){
    return this.filter(function(){
        var id = this.id;
        return id.match(re);
    });
};

alert($('li').regexFindId(/^one\d+two$/).text());