JSFiddle - React, Tailwind, and code Playground

HTML

<a id="1_18_shazin@mycompany.com" class="big-link" href="">4</a>

CSS

body{background:#f2f2f2;}

JavaScript

a = 1;
b = 18;
c = "shazin@mycompany.com";
aaa = a+'_'+b+'_'+c;
$('a[id="'+aaa+'"]').text("some text");