JSFiddle - React, Tailwind, and code Playground

HTML

<p class="example" data-which="1">a</p>

<p class="example-data" data-which="1">She said "<abbr title="What The F***">WTF</abbr>" on last night's show.</p>

CSS

.example-data {
    display: none;
}

JavaScript

$('.example').each(function() {
    var correspondingElem = $('.example-data[data-which="'
                              + $(this).data('which')
                              + '"]');
    $(this).data('example', correspondingElem.html());
});

alert($('.example').data('example'));