捉捕用户在该页面停留的时长,我是这般做的(前端监测)
<h1 style="color: black; text-align: left; margin-bottom: 10px;">前言</h1>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">为何</span>要做这个监测用户停留的呢?<span style="color: black;">原由</span>很简单,<span style="color: black;">倘若</span><span style="color: black;">咱们</span>要分析这个页面对<span style="color: black;">咱们</span>的<span style="color: black;">制品</span>有<span style="color: black;">无</span>价格,<span style="color: black;">那样</span>用户浏览的时长是一个很关键的点,<span style="color: black;">倘若</span><span style="color: black;">每一个</span>用户平均<span style="color: black;">每日</span>在这个页面停留两个小时以上,<span style="color: black;">那样</span><span style="color: black;">咱们</span>会觉得这个页面的价值很高;<span style="color: black;">倘若</span>一个页面<span style="color: black;">一月</span><span style="color: black;">亦</span>没几个用户去浏览,那<span style="color: black;">咱们</span>就会有疑问,这个页面对<span style="color: black;">咱们</span>的<span style="color: black;">制品</span>还有价值吗?<span style="color: black;">咱们</span>的<span style="color: black;">制品</span>后续还要<span style="color: black;">保存</span>它的?这些<span style="color: black;">需要</span>都是<span style="color: black;">能够</span>让<span style="color: black;">咱们</span><span style="color: black;">思虑</span><span style="color: black;">是不是</span>要去获取用户停留时长这个功能的。</span></p>
<h1 style="color: black; text-align: left; margin-bottom: 10px;">针对<span style="color: black;">那些</span>应用?</h1><span style="color: black;">多页面应用</span><span style="color: black;">单页面应用(本文以vue为例子)</span>
<h1 style="color: black; text-align: left; margin-bottom: 10px;"><span style="color: black;">怎样</span>去获取用户停留的时长?</h1>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">在监测功能的时候,<span style="color: black;">咱们</span>首要<span style="color: black;">思虑</span>的<span style="color: black;">便是</span>,<span style="color: black;">咱们</span>的监测代码<span style="color: black;">不可</span>影响<span style="color: black;">咱们</span><span style="color: black;">此刻</span>的业务代码,和以后的业务代码。</span></p>
<h1 style="color: black; text-align: left; margin-bottom: 10px;">多页面应用</h1>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">在多页面应用,要获取用户的停留时间还是挺简单的,<span style="color: black;">瞧瞧</span>下面几个Api</span></p><strong style="color: blue;"><span style="color: black;">onload</span></strong> (页面加载完后)<strong style="color: blue;"><span style="color: black;">onbeforeunload</span></strong> (页面卸载前,<span style="color: black;">亦</span><span style="color: black;">便是</span>点击叉的时候)<strong style="color: blue;"><span style="color: black;">onpageshow</span></strong> (页面<span style="color: black;">表示</span>的时候)<strong style="color: blue;"><span style="color: black;">onpagehide</span></strong> (页面<span style="color: black;">隐匿</span>的时候)<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">经过自己的一点小测试,<span style="color: black;">发掘</span>无论在关闭的时候(<span style="color: black;">亦</span><span style="color: black;">便是</span>点击叉),还是<span style="color: black;">隐匿</span>的时候(<span style="color: black;">亦</span><span style="color: black;">便是</span>点击<span style="color: black;">上下</span>箭头)都会触发</span><span style="color: black;"><span style="color: black;">onpagehide</span></span>;<span style="color: black;">亦</span>无论是在首次加载,还是刷新的时候,都会触发<span style="color: black;"><span style="color: black;">onpageshow</span></span>,<span style="color: black;">然则</span>刷新的时候会先触发<span style="color: black;"><span style="color: black;">onpagehide</span></span>,在触发<span style="color: black;"><span style="color: black;">onpageshow</span></span>。其他两个API<span style="color: black;">亦</span>是类似,最后,个人<span style="color: black;">选取</span>了用<span style="color: black;"><span style="color: black;">onpageshow</span></span>和<span style="color: black;"><span style="color: black;">onpagehide</span></span>这个两个API获取用户停留的时长,你<span style="color: black;">亦</span><span style="color: black;">能够</span>用其他两个API做。只要在<span style="color: black;"><span style="color: black;">onpageshow</span></span>初始时间值,在<span style="color: black;"><span style="color: black;">onpagehide</span></span>的时间求出差值,<span style="color: black;">而后</span>上传到后台就行。</p>
<span style="color: black;">let</span> stopTime
<span style="color: black;">window</span>.onpageshow = <span style="color: black;"><span style="color: black;">()</span>=></span>{
stopTime = <span style="color: black;">new</span> <span style="color: black;">Date</span>().getTime()
}
<span style="color: black;">window</span>.onpagehide = <span style="color: black;"><span style="color: black;">()</span>=></span>{
stopTime = <span style="color: black;">new</span> <span style="color: black;">Date</span>().getTime() - stopTime
<span style="color: black;">let</span> record = localStorage.getItem(<span style="color: black;">data</span>)
<span style="color: black;">let</span> data = record && <span style="color: black;">JSON</span>.parse(record) || []
localStorage.setItem(<span style="color: black;">data</span>,<span style="color: black;">JSON</span>.stringify([...data,{<span style="color: black;">user</span>:<span style="color: black;">new</span> <span style="color: black;">Date</span>().getTime(),<span style="color: black;">path</span>:<span style="color: black;">window</span>.location.href,stopTime}]))
}
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">完整代码就<span style="color: black;">那样</span>点,<span style="color: black;">这儿</span>我只是测试,就把模拟的用户id,真实的路径,真实的停留时长存储了在localStorage,在项目中<span style="color: black;">能够</span>传到后台,<span style="color: black;">而后</span><span style="color: black;">经过</span>分析,再可视化展示出来。</span></p>
<div style="color: black; text-align: left; margin-bottom: 10px;"><img src="https://p3-sign.toutiaoimg.com/pgc-image/1163090dc0fd4bbb86f6890c2d5e026f~noop.image?_iz=58558&from=article.pc_detail&lk3s=953192f4&x-expires=1725848967&x-signature=Jd5E4nRMqPLioFHu9Yp9icDxaDQ%3D" style="width: 50%; margin-bottom: 20px;"></div>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">上面效果图(录得GIF就那AV画质,没钱开VIP,将就看吧,有点AV感觉<span style="color: black;">亦</span>好,哈哈),<span style="color: black;">第1</span>次点击的是</span><span style="color: black;"><span style="color: black;">叉</span></span>,点击叉那<span style="color: black;">亦</span><span style="color: black;">能够</span>理解为离开了页面,第二次<span style="color: black;"><span style="color: black;">a链接<span style="color: black;">转</span></span></span>,第三次<span style="color: black;"><span style="color: black;">刷新</span></span>,刷新<span style="color: black;">亦</span><span style="color: black;">能够</span>理解为一次离开吧,一共存了三条数据,有兴趣自己试试更好理解。</p>
<h1 style="color: black; text-align: left; margin-bottom: 10px;">单页面应用</h1>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">单页面应用可能,会<span style="color: black;">繁杂</span>一点,<span style="color: black;">然则</span><span style="color: black;">亦</span><span style="color: black;">繁杂</span>不到哪里去。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">单页面应用的路由<span style="color: black;">转</span>,都是基于 </span><span style="color: black;"><span style="color: black;">H5的History API(browserHistory)</span></span> 和 <span style="color: black;"><span style="color: black;">Hash(hashHistory)</span></span>实现的。</p>
<h1 style="color: black; text-align: left; margin-bottom: 10px;">browserHistory</h1>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">单页面的</span><span style="color: black;"><span style="color: black;">browserHistory路由</span></span>是基于H5的History API实现的,<span style="color: black;">咱们</span>只要监听<span style="color: black;"><span style="color: black;">popstate</span></span>就<span style="color: black;">能够</span><span style="color: black;">晓得</span>,点击前进后退按钮改变的url变化,url<span style="color: black;">出现</span>变化,<span style="color: black;">咱们</span>就能统计用户在该页面待了多<span style="color: black;">长期</span>,代码如下</p><span style="color: black;">let</span> timeStr
<span style="color: black;">window</span>.addEventListener(<span style="color: black;">onload</span>,<span style="color: black;">(<span style="color: black;">e</span>)=></span>{
timeStr =<span style="color: black;">new</span> <span style="color: black;">Date</span>().getTime()
})
<span style="color: black;">window</span>.addEventListener(<span style="color: black;">popstate</span>,<span style="color: black;"><span style="color: black;">()</span>=></span>{
<span style="color: black;">let</span> t = <span style="color: black;">new</span> <span style="color: black;">Date</span>().getTime() - timeStr
timeStr = <span style="color: black;">new</span> <span style="color: black;">Date</span>().getTime()
<span style="color: black;">console</span>.log(<span style="color: black;">待了时长:</span>+ t)
})
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">然则</span>,</span><span style="color: black;"><span style="color: black;">pushState和replaceState(<span style="color: black;">亦</span><span style="color: black;">便是</span>,点击router-view,$router.push,$router.replace,window.history.pushState,window.history.replaceState不会触发,<span style="color: black;">能够</span><span style="color: black;">自动</span>试试)</span></span>不会触发<span style="color: black;"><span style="color: black;">popstate</span></span>,那<span style="color: black;">咱们</span>就统计不了用户待在该页面的时长的了;可是<span style="color: black;">处理</span><span style="color: black;">办法</span>还是有的,只需要重写<span style="color: black;"><span style="color: black;">pushState和replaceState</span></span>,<span style="color: black;">而后</span>监听两个自定义事件就行,看下面代码</p>
<span style="color: black;">// 对原函数做一个拓展</span>
<span style="color: black;">let</span> rewriteHis = <span style="color: black;"><span style="color: black;">function</span>(<span style="color: black;"><span style="color: black;">type</span></span>)</span>{
<span style="color: black;">let</span> origin = <span style="color: black;">window</span>.history[<span style="color: black;">type</span>] <span style="color: black;">// 先将原函数存放起来</span>
<span style="color: black;">return</span> <span style="color: black;"><span style="color: black;">function</span>()</span>{ <span style="color: black;">// 当window.history函数被执行时,这个函数就会被执行</span>
<span style="color: black;">let</span> rs = origin.apply(<span style="color: black;">this</span>, <span style="color: black;">arguments</span>) <span style="color: black;">// 执行原函数</span>
<span style="color: black;">let</span> e = <span style="color: black;">new</span> Event(<span style="color: black;">type</span>.toLocaleLowerCase())<span style="color: black;">// 定义一个自定义事件</span>
e.arguments = <span style="color: black;">arguments</span> <span style="color: black;">// 把默认参数,绑定到自定义事件上,new Event返回的结果,<span style="color: black;">自己</span>上是<span style="color: black;">无</span>arguments的</span>
<span style="color: black;">window</span>.dispatchEvent(e) <span style="color: black;">// 触发自定义事件,把载荷传给自定义事件</span>
<span style="color: black;">return</span> rs
}
}
<span style="color: black;">window</span>.history.pushState = rewriteHis(<span style="color: black;">pushState</span>) <span style="color: black;">// 覆盖原来的pushState<span style="color: black;">办法</span></span>
<span style="color: black;">window</span>.history.replaceState = rewriteHis(<span style="color: black;">replaceState</span>) <span style="color: black;">// 覆盖原来的replaceState<span style="color: black;">办法</span></span>
<span style="color: black;">// 监听自定义事件, pushstate事件是在rewriteHis时注册的,不是原生事件</span>
<span style="color: black;">// 当点击router-link <span style="color: black;">或</span> window.history.pushState <span style="color: black;">或</span> this.$router.push 时都会被该事件监听到</span>
<span style="color: black;">window</span>.addEventListener(<span style="color: black;">pushstate</span>,<span style="color: black;"><span style="color: black;">()</span>=></span>{})
<span style="color: black;">// 监听自定义事件, replacestate事件是在rewriteHis时注册的,不是原生事件</span>
<span style="color: black;">// 当点击window.history.replaceState <span style="color: black;">或</span> this.$router.replace 时都会被该事件监听到</span>
<span style="color: black;">window</span>.addEventListener(<span style="color: black;">replacestate</span>,<span style="color: black;"><span style="color: black;">()</span>=></span>{})
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">rewriteHis函数</span></span>,这个函数<span style="color: black;">重点</span>是对原函数做了一个拓展,上面代码的注释应该说了很清楚了。</p>
<h1 style="color: black; text-align: left; margin-bottom: 10px;">browserHistory路由变化监听完整代码</h1>
<span style="color: black;">let</span> timeStr
<span style="color: black;">let</span> rewriteHis = <span style="color: black;"><span style="color: black;">function</span>(<span style="color: black;"><span style="color: black;">type</span></span>)</span>{
<span style="color: black;">let</span>origin =<span style="color: black;">window</span>.history[<span style="color: black;">type</span>]
<span style="color: black;">return</span> <span style="color: black;"><span style="color: black;">function</span>()</span>{
<span style="color: black;">let</span> rs = origin.apply(<span style="color: black;">this</span>, <span style="color: black;">arguments</span>)
<span style="color: black;">let</span> e = <span style="color: black;">new</span> Event(<span style="color: black;">type</span>.toLocaleLowerCase())
e.arguments = <span style="color: black;">arguments</span>
<span style="color: black;">window</span>.dispatchEvent(e)
<span style="color: black;">return</span> rs
}
}
<span style="color: black;">window</span>.history.pushState = rewriteHis(<span style="color: black;">pushState</span>)
<span style="color: black;">window</span>.history.replaceState = rewriteHis(<span style="color: black;">replaceState</span>)
<span style="color: black;">window</span>.addEventListener(<span style="color: black;">onload</span>,<span style="color: black;">(<span style="color: black;">e</span>)=></span>{
timeStr = <span style="color: black;">new</span> <span style="color: black;">Date</span>().getTime()
})
<span style="color: black;">window</span>.addEventListener(<span style="color: black;">popstate</span>,<span style="color: black;"><span style="color: black;">()</span>=></span>{
<span style="color: black;">let</span> t = <span style="color: black;">new</span> <span style="color: black;">Date</span>().getTime() - timeStr
timeStr =<span style="color: black;">new</span> <span style="color: black;">Date</span>().getTime()
<span style="color: black;">console</span>.log(<span style="color: black;">待了时长popstate:</span>+ t)
})
<span style="color: black;">window</span>.addEventListener(<span style="color: black;">pushstate</span>,<span style="color: black;"><span style="color: black;">()</span>=></span>{
<span style="color: black;">let</span> t = <span style="color: black;">new</span> <span style="color: black;">Date</span>().getTime() - timeStr
timeStr = <span style="color: black;">new</span> <span style="color: black;">Date</span>().getTime()
<span style="color: black;">console</span>.log(<span style="color: black;">待了时长pushstate:</span>+ t)
})
<span style="color: black;">window</span>.addEventListener(<span style="color: black;">replacestate</span>,<span style="color: black;"><span style="color: black;">()</span>=></span>{
<span style="color: black;">let</span> t = <span style="color: black;">new</span> <span style="color: black;">Date</span>().getTime() - timeStr
timeStr = <span style="color: black;">new</span> <span style="color: black;">Date</span>().getTime()
<span style="color: black;">console</span>.log(<span style="color: black;">待了时长replacestate:</span>+ t)
})
<div style="color: black; text-align: left; margin-bottom: 10px;"><img src="https://p3-sign.toutiaoimg.com/pgc-image/9437a37913ad4b43bb0872293581c4ef~noop.image?_iz=58558&from=article.pc_detail&lk3s=953192f4&x-expires=1725848967&x-signature=6NaH3kr0km2GRv%2BiKK2nl51mFTc%3D" style="width: 50%; margin-bottom: 20px;"></div>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">这儿</span>的演示就不做任何存储了,<span style="color: black;">爱好</span>的话,自己做一下</span></p>
<h1 style="color: black; text-align: left; margin-bottom: 10px;">hashHistory</h1>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">hashHistory</span></span>就简单得不行了,直接监听<span style="color: black;"><span style="color: black;">hashchange</span></span>就行</p>
<span style="color: black;">window</span>.addEventListener(<span style="color: black;">hashchange</span>,<span style="color: black;"><span style="color: black;">()</span>=></span>{
<span style="color: black;">let</span> t = <span style="color: black;">new</span> <span style="color: black;">Date</span>().getTime() - timeStr
timeStr = <span style="color: black;">new</span> <span style="color: black;">Date</span>().getTime()
<span style="color: black;">console</span>.log(<span style="color: black;">待了时长:</span>+ t)
})
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">到<span style="color: black;">这儿</span>为止,单页面应用,多页面应用怎么去获取用户待在该页面的时长就说完了。<span style="color: black;">亦</span>不是很理解,挺简单的。</span></p>
<h1 style="color: black; text-align: left; margin-bottom: 10px;">后续</h1>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">你以为这就完事了吧,还有一个奇怪的问题。</span></p><span style="color: black;">const</span> router = <span style="color: black;">new</span> VueRouter({
mode:<span style="color: black;">hash</span>,
routes:[...]
})
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">我在测试</span><span style="color: black;"><span style="color: black;">hash路由</span></span>切换的时候,看会不会触发<span style="color: black;"><span style="color: black;">window.addEventListener(hashchange,()=>{})</span></span>,奇怪的事情<span style="color: black;">出现</span>了,它<span style="color: black;">无</span>触发,却触发了<span style="color: black;"><span style="color: black;">自定义window.addEventListener(replacestate,()=>{}和window.addEventListener(pushstate,()=>{})等History API</span></span>,<span style="color: black;">到底</span>是<span style="color: black;">为何</span>?我明明把它设置为hash路由了,<span style="color: black;">为何</span>还会触发History API?带着这个疑问,我忍不住的去看了vue-router的源码,最后,解开了自己的疑问,看下面:</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">在vue-router的hash路由实现文件</span></p>
<div style="color: black; text-align: left; margin-bottom: 10px;"><img src="https://p3-sign.toutiaoimg.com/pgc-image/a2dd8d1d1d0d44358111e3036d117fc8~noop.image?_iz=58558&from=article.pc_detail&lk3s=953192f4&x-expires=1725848967&x-signature=zcjtk9KPzrI4AJ6adi%2FTTVz5C%2F4%3D" style="width: 50%; margin-bottom: 20px;"></div>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">有这么一段代码,在 </span><span style="color: black;"><span style="color: black;">supportsPushState</span></span>为<span style="color: black;"><span style="color: black;">false</span></span>时,才会走<span style="color: black;"><span style="color: black;">else</span></span><span style="color: black;">规律</span>,<span style="color: black;"><span style="color: black;">else</span></span>的<span style="color: black;">规律</span>才会触发<span style="color: black;"><span style="color: black;">window.addEventListener(hashchange,()=>{})</span></span>,那它<span style="color: black;">为何</span>不走?<span style="color: black;"><span style="color: black;">supportsPushState</span></span>又是什么?<span style="color: black;"><span style="color: black;">pushState,replaceState</span></span>又是怎么实现的?<span style="color: black;">为何</span>它会触发自定义事件?</p>
<h1 style="color: black; text-align: left; margin-bottom: 10px;">supportsPushState</h1>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">来<span style="color: black;">瞧瞧</span>supportsPushState是什么</span></p>
<div style="color: black; text-align: left; margin-bottom: 10px;"><img src="https://p3-sign.toutiaoimg.com/pgc-image/c5dedb4a92d341a59717091ba4961698~noop.image?_iz=58558&from=article.pc_detail&lk3s=953192f4&x-expires=1725848967&x-signature=YagtenwvitcyFQvLZoQbgUPdayw%3D" style="width: 50%; margin-bottom: 20px;"></div>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">上面是supportsPushState的<span style="color: black;">规律</span>,看到这<span style="color: black;">规律</span>,是不是瞬间就明白了<span style="color: black;">为何</span>不走</span><span style="color: black;"><span style="color: black;">else</span></span><span style="color: black;">规律</span>的hash语句了。当满足这些<span style="color: black;">要求</span>才会走else语句<span style="color: black;"><span style="color: black;">(ua.indexOf(Android 2.) !== \-1 || ua.indexOf(Android 4.0) !== \-1) && ua.indexOf(Mobile Safari) !== \-1 && ua.indexOf(Chrome) === \-1 && ua.indexOf(Windows Phone) === \-1</span></span>,否则其他都是走<span style="color: black;"><span style="color: black;">基于History API实现的Hash-router</span></span>。</p>
<h1 style="color: black; text-align: left; margin-bottom: 10px;">pushState , replaceState</h1>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">再来<span style="color: black;">瞧瞧</span>这两个api的实现</span></p>
<div style="color: black; text-align: left; margin-bottom: 10px;"><img src="https://p3-sign.toutiaoimg.com/pgc-image/894f1633174e4da6bb538720e3bf838e~noop.image?_iz=58558&from=article.pc_detail&lk3s=953192f4&x-expires=1725848967&x-signature=PoYUw4IzETbwlK5mze8O3bfnCFg%3D" style="width: 50%; margin-bottom: 20px;"></div>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">原来它们都是调用了 </span><span style="color: black;"><span style="color: black;">History API</span></span>实现,这就解开了<span style="color: black;">为何</span>它会触发自定义事件的<span style="color: black;">原由</span>了。</p>
<h1 style="color: black; text-align: left; margin-bottom: 10px;">看源码指引</h1>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">倘若</span>你不相信,我比比的话,<span style="color: black;">能够</span><span style="color: black;">自动</span><span style="color: black;">瞧瞧</span>源码。</span></p>
<div style="color: black; text-align: left; margin-bottom: 10px;"><img src="https://p3-sign.toutiaoimg.com/pgc-image/97ba2ec5446f4e26929177b8b669f6ab~noop.image?_iz=58558&from=article.pc_detail&lk3s=953192f4&x-expires=1725848967&x-signature=F6XbfR18gelypyLcaFr0PqAkG3c%3D" style="width: 50%; margin-bottom: 20px;"></div>
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