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HTML
required Attribute</h1> <div class="qa_category"> <div id="divCategories"> <a href='https://tutorialspoint.com/articles/category/HTML' target='_blank'><span>HTML</span></a><a href='https://tutorialspoint.com/articles/category/Web-Development' target='_blank'><span>Web Development</span></a><a href='https://tutorialspoint.com/articles/category/Front-End-Technology' target='_blank'><span>Front End Technology</span></a></div> </div> <hr/> <!-- TAGNAME: 728x90_Top --> <div id="ezoic-pub-ad-placeholder-132" style="text-align:center !important;overflow: hidden; max-height:99px;min-height:99px"></div> <script> ezstandalone.cmd.push(function() { ezstandalone.showAds(132); }); </script> <p><p>The required attribute of the <textarea> element in HTML is used to let visitors know that this textarea field is to be filled before submitting the form. If a visitor clicks on Submit, without filling the textarea set with required attribute, then the form won’t submit.</p><p>Following is the syntax −</p><pre class="result notranslate"><textarea required></pre><p>Let us now see an example to implement the required attribute of the <textarea> element −</p><h2>Example</h2><p><a class="demo" href="http://tpcg.io/gwjDhq" rel="nofollow" target="_blank"> Live Demo</a></p><pre class="prettyprint notranslate"><!DOCTYPE html> <html> <body> <h2>Subject-wise rank</h2> <form action=""> <label for="stinfo">Student:</label> <input type="text" id ="stinfo"><br> <label for="sub">Subject:</label> <input type="text"><br> <label for="rank">Rank:</label> <input type="number"><br> <label for="marks">Marks:</label> <input type="number"><br> <label for="remark">Remarks</label><br> <textarea rows="6" cols="70" required></textarea><br> <input type="submit"> </form> </body> </html></pre><h2>Output</h2><p><img src="https://tutorialspoint.com/assets/questions/media/24551/must_fill.jpg" class="fr-fic fr-dib" style="width:600px; height:347px; border:1px solid black;" width="600" height="347"></p><p>In the above example, we have a form with fields and a button −</p><pre class="result notranslate"><form action=""> <label for="stinfo">Student:</label> <input type="text" id ="stinfo"><br> <label for="sub">Subject:</label> <input type="text"><br> <label for="rank">Rank:</label> <input type="number"><br> <label for="marks">Marks:</label> <input type="number"><br> <label for="remark">Remarks</label><br> <textarea rows="6" cols="70" required></textarea><br> <input type="submit"> </form></pre><p>We have set a textarea and set it is as required, therefore if the form is submitted without filling the textarea, then a warning message would be visible. This won’t even submit the form if the textarea is empty −</p><pre class="result notranslate"><textarea rows="6" cols="70" required></textarea></pre></p> <div class="clear"></div> <div class="qa_widget mui-panel prof-view-artcle"> <div class=""> <a href='https://tutorialspoint.com/authors/Chandu-Yadav-1' target='_blank' title="Chandu yadav" class="mui--pull-left"> <img class="profile-img1" src='https://tutorialspoint.com/assets/profiles/22330/profile/60_142811-1519038104.jpg' alt='Chandu yadav'/> </a> <div class="qa_author"> <a href='https://tutorialspoint.com/authors/Chandu-Yadav-1' target='_blank'><span>Chandu yadav</span></a> <p class="prof-desigtn mb-0"><b></b></p> </div> </div> <div class="clear"></div> <div class="library-page-bottom-nav" id="divStats" data-qid="24551" data-quid = "22330" style="margin-block: 1rem !important;padding-top: 18px;align-items: center; border-top: 1px dashed #ccc;font-size: 14px;"> <div><span class="date">Updated on: </span>30-Jul-2019</div> <div class="flex-group"> <div class="uthor-prof-social-icon mt-2"> <span class="share-options"> <a onclick="copyToClipboard();" title="Copy To Clipboard" class=""><svg xmlns="http://www.w3.org/2000/svg" height="1em" viewBox="0 0 512 512"><path d="M301.148 394.702l-79.2 79.19c-50.778 50.799-133.037 50.824-183.84 0-50.799-50.778-50.824-133.037 0-183.84l79.19-79.2a132.833 132.833 0 0 1 3.532-3.403c7.55-7.005 19.795-2.004 20.208 8.286.193 4.807.598 9.607 1.216 14.384.481 3.717-.746 7.447-3.397 10.096-16.48 16.469-75.142 75.128-75.3 75.286-36.738 36.759-36.731 96.188 0 132.94 36.759 36.738 96.188 36.731 132.94 0l79.2-79.2.36-.36c36.301-36.672 36.14-96.07-.37-132.58-8.214-8.214-17.577-14.58-27.585-19.109-4.566-2.066-7.426-6.667-7.134-11.67a62.197 62.197 0 0 1 2.826-15.259c2.103-6.601 9.531-9.961 15.919-7.28 15.073 6.324 29.187 15.62 41.435 27.868 50.688 50.689 50.679 133.17 0 183.851zm-90.296-93.554c12.248 12.248 26.362 21.544 41.435 27.868 6.388 2.68 13.816-.68 15.919-7.28a62.197 62.197 0 0 0 2.826-15.259c.292-5.003-2.569-9.604-7.134-11.67-10.008-4.528-19.371-10.894-27.585-19.109-36.51-36.51-36.671-95.908-.37-132.58l.36-.36 79.2-79.2c36.752-36.731 96.181-36.738 132.94 0 36.731 36.752 36.738 96.181 0 132.94-.157.157-58.819 58.817-75.3 75.286-2.651 2.65-3.878 6.379-3.397 10.096a163.156 163.156 0 0 1 1.216 14.384c.413 10.291 12.659 15.291 20.208 8.286a131.324 131.324 0 0 0 3.532-3.403l79.19-79.2c50.824-50.803 50.799-133.062 0-183.84-50.802-50.824-133.062-50.799-183.84 0l-79.2 79.19c-50.679 50.682-50.688 133.163 0 183.851z"/></svg></a> <a id="ancFBShare" onClick="window.open('https://#/sharer/sharer.php?u=https://tutorialspoint.com/html-textarea-required-attribute&t=HTML required Attribute&description=HTML required Attribute - The required attribute of the element in HTML is used to let visitors know that this textarea field is to be filled before submitting the form. 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