domrangeexample9.htm

来自「这是javascript高级程序设计的源码」· HTM 代码 · 共 23 行

HTM
23
字号
<html>
    <head>
        <title>DOM Range Example</title>
        <script type="text/javascript">
            function compare() {
                var oRange1 = document.createRange();
                var oRange2 = document.createRange();
                var oP1 = document.getElementById("p1");
                oRange1.selectNodeContents(oP1);
                oRange2.selectNodeContents(oP1);
                oRange2.setEndBefore(oP1.lastChild);
                alert(oRange1.compareBoundaryPoints(Range.START_TO_START, oRange2));  //outputs 0
                alert(oRange1.compareBoundaryPoints(Range.END_TO_END, oRange2));      //outputs 1;
            }
        </script>
    </head>
    <body><p id="p1"><b>Hello</b> World</p>
        <input type="button" value="Compare Ranges" onclick="compare()" />  
        <p><strong>Note:</strong> This example uses DOM ranges and will only work in browsers that support DOM ranges. This example will fail in Internet Explorer.</p>
      
    </body>
</html>

⌨️ 快捷键说明

复制代码Ctrl + C
搜索代码Ctrl + F
全屏模式F11
增大字号Ctrl + =
减小字号Ctrl + -
显示快捷键?