JSFiddle - React, Tailwind, and code Playground
HTML
<ul>
<li>1</li>
<li>2</li>
<li>3</li>
<li>4</li>
<li>5</li>
</ul>
<a href="#">select</a>
JavaScript
$('a').click(function(){
arr = "013".split("");
arr.forEach(function(a,b){
var element = $('li')[a];
console.log(element);
$(element).css({border:'1px solid red'});
});
})