JSFiddle - React, Tailwind, and code Playground

HTML

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

JavaScript

a = 1;
b = 18;
c = "shazin@mycompany.com";
var tempId = "#"+a+"_"+b+"_"+c;
alert(tempId);
//$(tempId).html("some text");
$("#1_18_shazin\\@mycompany\\.com").text("some text");