JSFiddle - React, Tailwind, and code Playground

HTML

<span class="main_price">
   $50
</span>

<span class="option_price">
   <span class="option_price_value">
    $70
   </span>
</span>

JavaScript

$(".option_price_value").each(function(){
        if ($(this).text().trim().length) {
            $('.main_price').hide(); 
            console.log('has option');
        } else {
             $('.main_price').show(); 
             console.log('has no option');
        }
    });