insertAdjacentHTML 笔记

xiaoxiao2026-05-21  17

   添加HTML内容与文本内容以前用的是innerHTML与innerText方法,最近发现还有insertAdjacentHTML和insertAdjacentText方法,这两个方法更灵活,可以在指定的地方插入html内容和文本内容。insertAdjacentHTML方法:在指定的地方插入html标签语句

 

原型:insertAdajcentHTML(swhere,stext)

 

参数:

 

swhere: 指定插入html标签语句的地方,有四种值可用:

 

1.     beforeBegin: 插入到标签开始前

 

2.     afterBegin:插入到标签开始标记之后

 

3.     beforeEnd:插入到标签结束标记前

 

4.     afterEnd:插入到标签结束标记后

 

stext:要插入的内容

 

示例:

<html>    <head>        <script language="javascript">            function myfun(){            var obj = document.getElementById("btn1");                obj.insertAdjacentHTML("afterEnd", "<br><input name=\"txt1\">");             }        </script>    </head>    <body>        <input name="txt"><input id="btn1" name="btn1" type="button" value="more" οnclick="myfun()">    </body></html>

 

************************************************************************************

 

<body οnlοad=addsome()><div id="paral" style="font-size:6;color='#ff00ff'">wwwwwwww</div><hr><script>function addsome(){document.all.paral.insertAdjacentHTML("beforeBegin","<h4>aa</h1>");document.all.paral.insertAdjacentHTML("afterBegin","<h1>bb</h1>");document.all.paral.insertAdjacentHTML("beforeEnd","<h2>cc</h2>");document.all.paral.insertAdjacentHTML("afterEnd","<h5>dd</h2>");}</script></body>

*************************************************************************************

<html>    <script>                var a = 0;        function Remove_button(obj){            obj.removeNode(true);        }                function Add_button(){            c_input.insertAdjacentHTML("beforeEnd", "<div id=bar" + a +            " style='background:red;width:40;height:20'" +            "οncοntextmenu='Remove_button(bar" +            a +            "); return false'>" +            a +            "sss</div>")            a++;        }    </script>    <input type="button" οnclick="Add_button()" value="add"><input type="button" οnclick="alert(c_input.innerHTML)" value="look">    <div id="c_input">    </div></HTML>

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