JSFiddle - React, Tailwind, and code Playground
HTML
<div id="hiddenEle" name="hiddenEle" style="display:none">This div is hidden</div>
<div id="visibleEle" name="visibleEle" style="display:block">This div is visible</div>
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JavaScript
console.log($('#hiddenEle').is(":visible"));
console.log($('#visibleEle').is(":visible"));