I'm curious about something I noticed in an HTML example within the text content section of elements. Can you help clarify this for me?

I recently came across a repository that was part of a bootcamp curriculum for learning full stack development. In one of the lessons on jQuery, students were tasked with building a calculator. However, I noticed some strange variables in the HTML where text content should have been. I'm curious about the purpose of these symbols (÷ and ×) and when and how they should be used. It's possible that I am overthinking it and they serve no real significance. The specific code snippet I'm referring to is shown below.

          <div class="card-body">
            <button id="button-1" class="btn btn-primary number" value="1"><span>1</span></button>
            <button id="button-2" class="btn btn-primary number" value="2"><span>2</span></button>
            <button id="button-3" class="btn btn-primary number" value="3"><span>3</span></button>
            <button id="button-plus" class="btn btn-danger operator" value="plus"><span>+</span></button>
            <br><br>
            <button id="button-4" class="btn btn-primary number" value="4"><span>4</span></button>
            <button id="button-5" class="btn btn-primary number" value="5"><span>5</span></button>
            <button id="button-6" class="btn btn-primary number" value="6"><span>6</span></button>
            <button id="button-minus" class="btn btn-danger operator" value="minus"><span>&minus;</span></button>
            <br><br>
            <button id="button-7" class="btn btn-primary number" value="7"><span>7</span></button>
            <button id="button-8" class="btn btn-primary number" value="8"><span>8</span></button>
            <button id="button-9" class="btn btn-primary number" value="9"><span>9</span></button>
            <button id="button-multiply" class="btn btn-danger operator" value="times"><span>&times;</span></button>
            <br><br>
            <button id="button-0" class="btn btn-primary number" value="0"><span>0</span></button>
            <button id="button-divide" class="btn btn-danger operator" value="divide"><span>&divide;</span></button>
            <button id="button-power" class="btn btn-danger operator" value="power"><span>^</span></button>
            <button id="button-equal" class="btn btn-success equal" value="equals"><span>=</span></button>
            <br><br>
            <button id="button-clear" class="btn btn-dark clear" value="clear"><span>clear</span></button>
          </div>
        </div>
      </div>

Answer №1

HTML entities are special codes that begin with "&" and end with ";" to represent certain characters in HTML. Some reserved characters include:

< as &lt;
> as &gt;
" as &quot;
' as &apos;

If you need to display "<something>" but fail to replace the less than and greater than symbols, it will be interpreted as an opening tag. However, using normal characters should suffice for your needs since the ones being used are not reserved in this case.

To add special characters in HTML, you can simply copy and paste these codes: × ÷ -

For further information, visit: https://www.w3schools.com/html/html_entities.asp

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