JSFiddle - React, Tailwind, and code Playground

HTML

<p class="comment-rating">
    Rating: <strong>2 / 5</strong>
</p>

<p class="comment-rating">
    Rating: <strong>5 / 5</strong>
</p>

<p class="comment-rating">
    Rating: <strong>1 / 5</strong>
</p>

JavaScript

$('p.comment-rating').each(function() {

    console.log( '.comment-rating: ' + $("p.comment-rating:contains('5 / 5')").length );
    console.log( '$(this): '+ $(this).find(":contains('5 / 5')").length );
    
    if ( $(this).find(":contains('5 / 5')").length !== 0 ) {
        $(this).prepend('<p class="prepen_img"><img src="http://placekitten.com/30/40" /></p>');
    }
    else {
        $(this).prepend('<p class="prepen_img"><img src="http://placekitten.com/g/30/40" /></p>');
    }

});