JSFiddle - React, Tailwind, and code Playground

HTML

blah

<b>id:</b><br />
id1<br/>

askfjdsjfsdghd

<b>id:</b><br />
id2<br/>

askfjdsjfsdghd

<b>id:</b><br />
id3<br/>

JavaScript

var html = document.body.innerHTML;
alert('a');
var match = "<b>id\:</b><br \/>([^\<)+<br \/>".exec(html);
alert('z');