JSFiddle - React, Tailwind, and code Playground

by Derek Howard

HTML

<div id="nums">
<div id="id_123456_7890123">Hey</div>
<div id="id_123456_1120092">Hello</div>
<div id="id_555222_1200192">Sup</div>
<div id="id_123456_9882311">Boom</div>
</div>
<br/>
<br/>
<div id="result"></div>

JavaScript

divs = document.getElementsByTagName("div");
divsWith123456 = new Array();
for (var i = 0;i < divs.length;i++) {
    if (divs[i].id.match("id_123456") != null) {
        divsWith123456.push(divs[i]);
        document.getElementById("result").innerHTML += "Found: divs[" + i + "] id contains id_123456, its content is \"" + divs[i].innerHTML + "\"<br/><br/>";
    }
}