JSFiddle - React, Tailwind, and code Playground

HTML

<div class="target">something</div>

JavaScript

function getRandom(){
    return (Math.floor(Math.random() * (200 - 100 + 1)) + 100).toString();
}

var attrs = {};

attrs["data-" + getRandom()] = "something";
attrs["data-" + getRandom()] = "something";
attrs["data-" + getRandom()] = "something";

//console.log(attrs);

$(".target").attr(attrs);