JSFiddle - React, Tailwind, and code Playground

HTML

<div class="one two three four five six seven eight"></div>
<div class="one two three four five six seven eight ten"></div>
<div class="one two three four five six seven eight"></div>
<div class="one two three four five six seven eight"></div>
<div class="one two three four five six seven eight eleven"></div> 
<div class="one two three four five six seven eight nine"></div>

JavaScript

// demo setup ..add some text

$('div').text(function(i){
    return 'Item #'+(i+1)
});

var obj = ['nine', 'ten', 'eleven'];

var elemCollection = $(  '.' + obj.join(',.') ).css('color','red');