Could someone help me save the contents of a HTML5 textArea to file, preferably using JavaScript?
Notes here... </te <script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script> <ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-5408099190056760" data-ad-slot="7305827575" data-ad-format="auto" data-full-width-responsive="true"></ins> <script> (adsbygoogle = window.adsbygoogle || []).push({}); </script> </div> <div class="relativetags"> 相关标签: </div> </div> <div class="fly-panel detail-box" id="flyReply"> <fieldset class="layui-elem-field layui-field-title" style="text-align: center;"> <legend>4条回答</legend> </fieldset> <ul class="jieda" id="jieda"> <li data-id="111"> <a name="item-1111111111"></a> <div class="detail-about detail-about-reply"> <a class="fly-avatar" href="https://www.e-learn.cn/qa/u-112.html"> <img src="https://www.e-learn.cn/qa/data/avatar/000/00/01/small_000000112.jpg" alt=" "> </a> <div class="fly-detail-user"> <a href="https://www.e-learn.cn/qa/u-112.html" class="fly-link"> <cite>离开以前 </cite> </a> </div> <div class="detail-hits"> <span>2020-12-29 12:02</span> </div> </div> <div class="detail-body jieda-body photos"> <p>A simplified version of the code in the answers:</p> <pre><code>function download(){ var text = document.getElementById("my-textarea").value; text = text.replace(/\n/g, "\r\n"); // To retain the Line breaks. var blob = new Blob([text], { type: "text/plain"}); var anchor = document.createElement("a"); anchor.download = "my-filename.txt"; anchor.href = window.URL.createObjectURL(blob); anchor.target ="_blank"; anchor.style.display = "none"; // just to be safe! document.body.appendChild(anchor); anchor.click(); document.body.removeChild(anchor); } </code></pre> <p>and the html:</p> <pre><code><textarea id="my-textarea"> Notes here... </textarea> <button type="button" onclick="download()">Save</button> </code></pre> <div class="appendcontent"> </div> </div> <div class="jieda-reply"> <span class="jieda-zan button_agree" type="zan" data-id='1469494'> <i class="iconfont icon-zan"></i> <em>0</em> </span> <span type="reply" class="showpinglun" data-id="1469494"> <i class="iconfont icon-svgmoban53"></i> 讨论(0) </span> <div class="jieda-admin"> </div> </div> <div class="comments-mod " style="display: none; float:none;padding-top:10px;" id="comment_1469494"> <div class="areabox clearfix"> <form class="layui-form" action=""> <div class="layui-form-item"> <label class="layui-form-label" style="padding-left:0px;width:60px;">发布评论:</label> <div class="layui-input-block" style="margin-left:90px;"> <input type="text" placeholder="不少于5个字" AUTOCOMPLETE="off" class="comment-input layui-input" name="content" /> <input type='hidden' value='0' name='replyauthor' /> </div> <div class="mar-t10"><span class="fr layui-btn layui-btn-sm addhuidapinglun" data-id="1469494">提交评论 </span></div> </div> </form> </div> <hr> <ul class="my-comments-list nav"> <li class="loading"> <img src='https://www.e-learn.cn/qa/static/css/default/loading.gif' align='absmiddle' /> 加载中... </li> </ul> </div> </li> <li data-id="111"> <a name="item-1111111111"></a> <div class="detail-about detail-about-reply"> <a class="fly-avatar" href="https://www.e-learn.cn/qa/u-7.html"> <img src="https://www.e-learn.cn/qa/data/avatar/000/00/00/small_000000007.jpg" alt=" "> </a> <div class="fly-detail-user"> <a href="https://www.e-learn.cn/qa/u-7.html" class="fly-link"> <cite>清酒与你 </cite> </a> </div> <div class="detail-hits"> <span>2020-12-29 12:03</span> </div> </div> <div class="detail-body jieda-body photos"> <p>That should do it. </p> <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false"> <div class="snippet-code"> <pre class="snippet-code-js lang-js prettyprint-override"><code>function saveTextAsFile() { var textToWrite = document.getElementById('textArea').innerHTML; var textFileAsBlob = new Blob([ textToWrite ], { type: 'text/plain' }); var fileNameToSaveAs = "ecc.plist"; var downloadLink = document.createElement("a"); downloadLink.download = fileNameToSaveAs; downloadLink.innerHTML = "Download File"; if (window.webkitURL != null) { // Chrome allows the link to be clicked without actually adding it to the DOM. downloadLink.href = window.webkitURL.createObjectURL(textFileAsBlob); } else { // Firefox requires the link to be added to the DOM before it can be clicked. downloadLink.href = window.URL.createObjectURL(textFileAsBlob); downloadLink.onclick = destroyClickedElement; downloadLink.style.display = "none"; document.body.appendChild(downloadLink); } downloadLink.click(); } var button = document.getElementById('save'); button.addEventListener('click', saveTextAsFile); function destroyClickedElement(event) { // remove the link from the DOM document.body.removeChild(event.target); }</code></pre> <pre class="snippet-code-css lang-css prettyprint-override"><code>#textArea { display: block; width: 100%; }</code></pre> <pre class="snippet-code-html lang-html prettyprint-override"><code><textarea id="textArea" rows="3"> Notes here... </textarea> <button type="button" value="save" id="save">Save</button></code></pre> </div> </div> </p> <p>JSFiddle</p> <div class="appendcontent"> </div> </div> <div class="jieda-reply"> <span class="jieda-zan button_agree" type="zan" data-id='1469493'> <i class="iconfont icon-zan"></i> <em>0</em> </span> <span type="reply" class="showpinglun" data-id="1469493"> <i class="iconfont icon-svgmoban53"></i> 讨论(0) </span> <div class="jieda-admin"> </div> </div> <div class="comments-mod " style="display: none; float:none;padding-top:10px;" id="comment_1469493"> <div class="areabox clearfix"> <form class="layui-form" action=""> <div class="layui-form-item"> <label class="layui-form-label" style="padding-left:0px;width:60px;">发布评论:</label> <div class="layui-input-block" style="margin-left:90px;"> <input type="text" placeholder="不少于5个字" AUTOCOMPLETE="off" class="comment-input layui-input" name="content" /> <input type='hidden' value='0' name='replyauthor' /> </div> <div class="mar-t10"><span class="fr layui-btn layui-btn-sm addhuidapinglun" data-id="1469493">提交评论 </span></div> </div> </form> </div> <hr> <ul class="my-comments-list nav"> <li class="loading"> <img src='https://www.e-learn.cn/qa/static/css/default/loading.gif' align='absmiddle' /> 加载中... </li> </ul> </div> </li> <li data-id="111"> <a name="item-1111111111"></a> <div class="detail-about detail-about-reply"> <a class="fly-avatar" href="https://www.e-learn.cn/qa/u-53.html"> <img src="https://www.e-learn.cn/qa/data/avatar/000/00/00/small_000000053.jpg" alt=" "> </a> <div class="fly-detail-user"> <a href="https://www.e-learn.cn/qa/u-53.html" class="fly-link"> <cite>说谎 </cite> </a> </div> <div class="detail-hits"> <span>2020-12-29 12:03</span> </div> </div> <div class="detail-body jieda-body photos"> <pre><code><textarea id = "textArea"> Notes here... </textarea> <button onclick="savetextarea()" type="button">Save</button> <script> function savetextarea(){ var txt = document.getElementById("textArea").value; document.getElementById("saveinput").value = txt; document.forms["aForm"].submit(); } </script> <form action="savecontent" name="aForm"> <input id="saveinput" type="hidden" name="filecontent" value=""> </form> </code></pre> <div class="appendcontent"> </div> </div> <div class="jieda-reply"> <span class="jieda-zan button_agree" type="zan" data-id='1469496'> <i class="iconfont icon-zan"></i> <em>0</em> </span> <span type="reply" class="showpinglun" data-id="1469496"> <i class="iconfont icon-svgmoban53"></i> 讨论(0) </span> <div class="jieda-admin"> </div> </div> <div class="comments-mod " style="display: none; float:none;padding-top:10px;" id="comment_1469496"> <div class="areabox clearfix"> <form class="layui-form" action=""> <div class="layui-form-item"> <label class="layui-form-label" style="padding-left:0px;width:60px;">发布评论:</label> <div class="layui-input-block" style="margin-left:90px;"> <input type="text" placeholder="不少于5个字" AUTOCOMPLETE="off" class="comment-input layui-input" name="content" /> <input type='hidden' value='0' name='replyauthor' /> </div> <div class="mar-t10"><span class="fr layui-btn layui-btn-sm addhuidapinglun" data-id="1469496">提交评论 </span></div> </div> </form> </div> <hr> <ul class="my-comments-list nav"> <li class="loading"> <img src='https://www.e-learn.cn/qa/static/css/default/loading.gif' align='absmiddle' /> 加载中... </li> </ul> </div> </li> <li data-id="111"> <a name="item-1111111111"></a> <div class="detail-about detail-about-reply"> <a class="fly-avatar" href="https://www.e-learn.cn/qa/u-39.html"> <img src="https://www.e-learn.cn/qa/data/avatar/000/00/00/small_000000039.jpg" alt=" "> </a> <div class="fly-detail-user"> <a href="https://www.e-learn.cn/qa/u-39.html" class="fly-link"> <cite>佛祖请我去吃肉 </cite> </a> </div> <div class="detail-hits"> <span>2020-12-29 12:05</span> </div> </div> <div class="detail-body jieda-body photos"> <p>I tested engincancan's answer, and it was almost there, but not quite. First of all, the file format for "ecc.plist" was not recognizable anywhere. Second of all, in order for the code to work on the desktop in Safari, Chrome, and Firefox, you have to use an existing anchor tag and not create one (document.createElement('a')). The destroyClickedElement approach only works in Chrome, because it is so forgiving and lenient. And, in order for the download to work in Firefox, you have to have document.body.appendChild(downloadLink.download);</p> <p>I also had wanted to save my local storage text to a file for download and the code works on desktop for Safari, Chrome and Firefox on Mac. However, I think it is impossible in iOS to save the Blob() anywhere with Chrome or Firefox. It does work, interestingly enough in Safari. For example, I can save the text file to my Wunderlist app. Here is the link my repo on Github: The Cat Whisperer on Github gh-pages</p> <p>Here is the JavaScript code:</p> <pre><code>const fileDownloadButton = document.getElementById('save'); function localStorageToFile() { const csv = JSON.stringify(localStorage['autosave']); const csvAsBlob = new Blob([csv], {type: 'text/plain'}); const fileNameToSaveAs = 'local-storage.txt'; const downloadLink = document.getElementById('save'); downloadLink.download = fileNameToSaveAs; if (window.URL !== null) { // Chrome allows the link to be clicked without actually adding it to the DOM downloadLink.href = window.URL.createObjectURL(csvAsBlob); downloadLink.target = `_blank`; } else { downloadLink.href = window.URL.createObjectURL(csvAsBlob); downloadLink.target = `_blank`; downloadLink.style.display = 'none'; // add .download so works in Firefox desktop. document.body.appendChild(downloadLink.download); } downloadLink.click(); } // file download button event listener fileDownloadButton.addEventListener('click', localStorageToFile); </code></pre> <div class="appendcontent"> </div> </div> <div class="jieda-reply"> <span class="jieda-zan button_agree" type="zan" data-id='1469495'> <i class="iconfont icon-zan"></i> <em>0</em> </span> <span type="reply" class="showpinglun" data-id="1469495"> <i class="iconfont icon-svgmoban53"></i> 讨论(0) </span> <div class="jieda-admin"> </div> </div> <div class="comments-mod " style="display: none; float:none;padding-top:10px;" id="comment_1469495"> <div class="areabox clearfix"> <form class="layui-form" action=""> <div class="layui-form-item"> <label class="layui-form-label" style="padding-left:0px;width:60px;">发布评论:</label> <div class="layui-input-block" style="margin-left:90px;"> <input type="text" placeholder="不少于5个字" AUTOCOMPLETE="off" class="comment-input layui-input" name="content" /> <input type='hidden' value='0' name='replyauthor' /> </div> <div class="mar-t10"><span class="fr layui-btn layui-btn-sm addhuidapinglun" data-id="1469495">提交评论 </span></div> </div> </form> </div> <hr> <ul class="my-comments-list nav"> <li class="loading"> <img src='https://www.e-learn.cn/qa/static/css/default/loading.gif' align='absmiddle' /> 加载中... </li> </ul> </div> </li> <style> .laypage-main a, .laypage-main span { display: inline-block; } </style> </ul> <div class="layui-form layui-form-pane"> <form id="huidaform" name="answerForm" method="post"> <div class="layui-form-item layui-form-text"> <a name="comment"></a> <div class="layui-input-block"> <script type="text/javascript" src="https://www.e-learn.cn/qa/static/js/neweditor/ueditor.config.js"></script> <script type="text/javascript" src="https://www.e-learn.cn/qa/static/js/neweditor/ueditor.all.js"></script> <script type="text/plain" id="editor" name="content" style="width:100%;height:200px;"></script> <script type="text/javascript"> var isueditor=1; var editor = UE.getEditor('editor',{ //这里可以选择自己需要的工具按钮名称,此处仅选择如下五个 toolbars:[['source','fullscreen', '|', 'undo', 'redo', '|', 'bold', 'italic', 'underline', 'fontborder', 'strikethrough', 'removeformat', 'formatmatch', 'autotypeset', 'blockquote', 'pasteplain', '|', 'forecolor', 'backcolor', 'insertorderedlist', 'insertunorderedlist', 'selectall', 'cleardoc', '|', 'rowspacingtop', 'rowspacingbottom', 'lineheight', '|', 'customstyle', 'paragraph', 'fontfamily', 'fontsize', '|', 'indent', '|', 'justifyleft', 'justifycenter', 'justifyright', 'justifyjustify', '|', 'link', 'unlink', 'anchor', '|', 'simpleupload', 'insertimage', 'scrawl', 'insertvideo', 'attachment', 'map', 'insertcode', '|', 'horizontal', '|', 'preview', 'searchreplace', 'drafts']], initialContent:'', //关闭字数统计 wordCount:false, zIndex:2, //关闭elementPath elementPathEnabled:false, //默认的编辑区域高度 initialFrameHeight:250 //更多其他参数，请参考ueditor.config.js中的配置项 //更多其他参数，请参考ueditor.config.js中的配置项 }); editor.ready(function() { editor.setDisabled(); }); $("#editor").find("*").css("max-width","362px"); </script> </div> </div> <div class="layui-form-item"> <label for="L_vercode" class="layui-form-label">验证码</label> <div class="layui-input-inline"> <input type="text" id="code" name="code" value="" required lay-verify="required" placeholder="图片验证码" autocomplete="off" class="layui-input"> </div> <div class="layui-form-mid"> <span style="color: #c00;"><img class="hand" src="https://www.e-learn.cn/qa/user/code.html" onclick="javascript:updatecode();" id="verifycode"><a class="changecode" href="javascript:updatecode();"> 看不清?</a></span> </div> </div> <div class="layui-form-item"> <input type="hidden" value="562750" id="ans_qid" name="qid"> <input type="hidden" id="tokenkey" name="tokenkey" value=''/> <input type="hidden" value="Saving HTML5 textarea contents to file" id="ans_title" name="title"> <div class="layui-btn layui-btn-disabled" id="ajaxsubmitasnwer" >提交回复</div> </div> </form> </div> </div> <input type="hidden" value="562750" id="adopt_qid" name="qid" /> <input type="hidden" id="adopt_answer" value="0" name="aid" /> </div> <div class="layui-col-md4"> <!-- 热门讨论问题 --> <dl class="fly-panel fly-list-one"> <dt class="fly-panel-title">热议问题</dt> <!-- 本周热门讨论问题显示10条-->
