<ruby id="bdb3f"></ruby>

    <p id="bdb3f"><cite id="bdb3f"></cite></p>

      <p id="bdb3f"><cite id="bdb3f"><th id="bdb3f"></th></cite></p><p id="bdb3f"></p>
        <p id="bdb3f"><cite id="bdb3f"></cite></p>

          <pre id="bdb3f"></pre>
          <pre id="bdb3f"><del id="bdb3f"><thead id="bdb3f"></thead></del></pre>

          <ruby id="bdb3f"><mark id="bdb3f"></mark></ruby><ruby id="bdb3f"></ruby>
          <pre id="bdb3f"><pre id="bdb3f"><mark id="bdb3f"></mark></pre></pre><output id="bdb3f"></output><p id="bdb3f"></p><p id="bdb3f"></p>

          <pre id="bdb3f"><del id="bdb3f"><progress id="bdb3f"></progress></del></pre>

                <ruby id="bdb3f"></ruby>

                企業??AI智能體構建引擎,智能編排和調試,一鍵部署,支持知識庫和私有化部署方案 廣告
                #### Rest參數、spread擴展運算符 > ES6中已經引入,在ES9中為**對象**提供了像數組一樣的rest參數和擴展運算符 * rest參數在對象中的應用 ~~~ function connect({host,port,...user}){ ?console.log(host) ?console.log(port) ?console.log(user) ?// user是包含username和password的對象 } conect({ ?host:'127.0.0.1', ?port:3306, ?username:'root', ?password:'root' }) ~~~ ~~~ // 傳統方式,沒用正則擴展 let str = '<a href="http://blog.mdashen.com">yishenBlog</a>' const reg = /<a href="(.*)">(.*)<\/a>/ console.log(reg.exec(str)) //正則匹配href屬性的值,和標簽內容內容 // 正則擴展 const reg2 = /<a href="(?<url>.*)">(?<text>.*)<\/a>/ // 類似于給匹配到的內容起一個別名 ~~~ ~~~ let str = 'Js34342你知道嗎555啦啦啦' const reg = /\d+(?=啦)/ // 匹配后面是'啦'的數值 正向斷言 const reg1 = /(?<=嗎)\d+/ // 匹配前面是'嗎'的數值 反向斷言 ~~~ > dot . 元字符 除換行符以外的任意單個字符 > > const reg = /正則內容/s ,末尾增加s,使'.'可以匹配換行符 ##### 正則擴展-dotAll模式 > 正則匹配時,有多個匹配到的內容;可以根據目標前面或后面,來對目標進行唯一性識別 ##### 正則擴展-反向斷言 ![image-20200718100716330](http://image.mdashen.com/pic/image-20200718100716330.png) ##### 正則擴展-命名捕獲分組 [正則基礎知識-菜鳥教程](https://www.runoob.com/regexp/regexp-syntax.html) [自己總結的-xmind-藍奏云-下載路徑](https://mdashen.lanzous.com/iPO5Xepb7mj) #### 正則擴展 ![image-20200717222718056](http://image.mdashen.com/pic/image-20200717222718056.png) > 可以將對象展開成key:value,的形式;與展開數組類似 * 擴展運算符在對象中的應用
                  <ruby id="bdb3f"></ruby>

                  <p id="bdb3f"><cite id="bdb3f"></cite></p>

                    <p id="bdb3f"><cite id="bdb3f"><th id="bdb3f"></th></cite></p><p id="bdb3f"></p>
                      <p id="bdb3f"><cite id="bdb3f"></cite></p>

                        <pre id="bdb3f"></pre>
                        <pre id="bdb3f"><del id="bdb3f"><thead id="bdb3f"></thead></del></pre>

                        <ruby id="bdb3f"><mark id="bdb3f"></mark></ruby><ruby id="bdb3f"></ruby>
                        <pre id="bdb3f"><pre id="bdb3f"><mark id="bdb3f"></mark></pre></pre><output id="bdb3f"></output><p id="bdb3f"></p><p id="bdb3f"></p>

                        <pre id="bdb3f"><del id="bdb3f"><progress id="bdb3f"></progress></del></pre>

                              <ruby id="bdb3f"></ruby>

                              哎呀哎呀视频在线观看