In the past few days, I have used H5 to develop a WeChat-like chat front-end interface. Especially the editor at the bottom of WeChat is handled very well. It is developed using HTML5. Although the functions and effects are not as complete as WeChat, it is still quite good. It can be Send messages and emoticons, and the sent messages will automatically scroll back to the bottom. In addition, you can have different right-click processing prompts for messages, pictures, and videos, as well as reward, screen occupying and other operations.
html code snippet:
<!--BEGIN 打赏--> <p class="js_dialog" id="J_Dialog_dashang" style="display: none;"> <!--<p class="weui-mask"></p>--> <p class="weui-dialog"> <i class="weui-xclose"></i> <p class="weui-dialog__bd"> <!-- //打赏模板区--> <p class="ws__popup-template"> <h2 id="为喜欢的节目打赏">为喜欢的节目打赏</h2> <p class="item flexbox"> <input class="ipt-txt align-l flex1" type="text" name="dschooseProgram" placeholder="选择打赏节目" readonly /> </p> <p class="item item-area"> <textarea class="describe" name="content" placeholder="输入打赏语,30字以内(选填)"></textarea> </p> <p class="item item-gift" id="J__chooseGift"> <p class="gift flexbox selected" data-gift="001"> <label class="txt"><span>豪车</span><em class="time">霸屏50秒</em></label> <span class="amount">¥<em>12</em> <i class="chkbox"></i></span> </p> <p class="gift flexbox" data-gift="002"> <label class="txt"><span>动人玫瑰</span><em class="time">霸屏20秒</em></label> <span class="amount">¥<em>8</em> <i class="chkbox"></i></span> </p> </p> </p> </p> <p class="weui-dialog__ft"> <a href="javascript:;" class="weui-dialog__btn weui-dialog__btn_primary" style="background: #ff4400; border-radius: 4px; color: #fff;">支付 <span>¥<em class="moneyNum">12</em></span> 打赏</a> </p> </p> </p> <!--END 打赏-->
Javascript code snippet:
/* ——聊天编辑器区域 */ var $editor = $(".J__editorText"), editor = $editor[0]; var $face = $(".emotion-area dd img"); $face.on("click", function(e){ if($(this).hasClass("face")){ //图像 var img = $(this)[0].cloneNode(true); editor.focus(); setTimeout(function(){ var range, node; if(document.selection && document.selection.createRange){ document.selection.createRange().pasteHTML(img); }else if(window.getSelection && window.getSelection().getRangeAt){ range = window.getSelection().getRangeAt(0); range.insertNode(img); range.collapse(false); var sel = window.getSelection(); sel.removeAllRanges(); sel.addRange(range); } }, 16); }else if($(this).hasClass("del")){ //删除 editor.focus(); range = window.getSelection().getRangeAt(0); range.collapse(false); var sel = window.getSelection(); sel.removeAllRanges(); sel.addRange(range); document.execCommand("delete"); } }); //...格式化编辑器包含标签 editor.addEventListener("focus", function(evt) { surrounds() }, true); editor.addEventListener("input", function(evt) { surrounds(); }, false); function surrounds() { setTimeout(function () { //chrome var sel = window.getSelection(); var anchorNode = sel.anchorNode; if (!anchorNode) return; if (sel.anchorNode === editor || (sel.anchorNode.nodeType === 3 && sel.anchorNode.parentNode === editor)) { var range = sel.getRangeAt(0); var p = document.createElement("p"); range.surroundContents(p); range.selectNodeContents(p); range.insertNode(document.createElement("br")); //chrome sel.collapse(p, 0); (function clearBr() { var elems = [].slice.call(editor.children); for (var i = 0, len = elems.length; i < len; i++) { var el = elems[i]; if (el.tagName.toLowerCase() == "br") { editor.removeChild(el); } } elems.length = 0; })(); } }, 0); } //...滚动到聊天内容底部 function scrollToBottom(){ $('.ws__chatMsg-panel').animate({scrollTop: $("#J__chatMsgList").height()}, 300); }
Run Effect:
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H5 brings a number of new functions and capabilities, greatly improving the interactivity and development efficiency of web pages. 1. Semantic tags such as enhance SEO. 2. Multimedia support simplifies audio and video playback through and tags. 3. Canvas drawing provides dynamic graphics drawing tools. 4. Local storage simplifies data storage through localStorage and sessionStorage. 5. The geolocation API facilitates the development of location-based services.

HTML5 brings five key improvements: 1. Semantic tags improve code clarity and SEO effects; 2. Multimedia support simplifies video and audio embedding; 3. Form enhancement simplifies verification; 4. Offline and local storage improves user experience; 5. Canvas and graphics functions enhance the visualization of web pages.

The core features of HTML5 include semantic tags, multimedia support, offline storage and local storage, and form enhancement. 1. Semantic tags such as, etc. to improve code readability and SEO effect. 2. Simplify multimedia embedding with labels. 3. Offline storage and local storage such as ApplicationCache and LocalStorage support network-free operation and data storage. 4. Form enhancement introduces new input types and verification properties to simplify processing and verification.

H5 provides a variety of new features and functions, greatly enhancing the capabilities of front-end development. 1. Multimedia support: embed media through and elements, no plug-ins are required. 2. Canvas: Use elements to dynamically render 2D graphics and animations. 3. Local storage: implement persistent data storage through localStorage and sessionStorage to improve user experience.

H5 and HTML5 are different concepts: HTML5 is a version of HTML, containing new elements and APIs; H5 is a mobile application development framework based on HTML5. HTML5 parses and renders code through the browser, while H5 applications need to run containers and interact with native code through JavaScript.

Key elements of HTML5 include,,,,,, etc., which are used to build modern web pages. 1. Define the head content, 2. Used to navigate the link, 3. Represent the content of independent articles, 4. Organize the page content, 5. Display the sidebar content, 6. Define the footer, these elements enhance the structure and functionality of the web page.

There is no difference between HTML5 and H5, which is the abbreviation of HTML5. 1.HTML5 is the fifth version of HTML, which enhances the multimedia and interactive functions of web pages. 2.H5 is often used to refer to HTML5-based mobile web pages or applications, and is suitable for various mobile devices.

HTML5 is the latest version of the Hypertext Markup Language, standardized by W3C. HTML5 introduces new semantic tags, multimedia support and form enhancements, improving web structure, user experience and SEO effects. HTML5 introduces new semantic tags, such as, ,, etc., to make the web page structure clearer and the SEO effect better. HTML5 supports multimedia elements and no third-party plug-ins are required, improving user experience and loading speed. HTML5 enhances form functions and introduces new input types such as, etc., which improves user experience and form verification efficiency.


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