d3.js selection.html()用法及代碼示例

selection.html()函數用於在所有選定元素上設置內部HTML。如果該值是常數，則所有元素都被賦予相同的值。空值將清除元素的內容。

用法:

selection.html([value]);

參數：該函數接受上述和以下描述的單個參數：

Value:它是將HTML設置為文檔的字符串類型。

返回值：此函數不返回任何內容。

範例1：在以下代碼中，HTML “p”元素內容更改為“bold”文本。

HTML

<!DOCTYPE html> 
<html lang="en"> 
  
<head> 
    <meta charset="UTF-8"> 
    <meta name="viewport" path1tent= 
        "width=device-width, initial-scale=1.0"> 
  
    <script src="https://d3js.org/d3.v4.min.js"> 
    </script> 
  
    <style> 
        p { 
            background-color:#f2f2f2; 
            padding:10px; 
            width:200px; 
            line-height:5px; 
        } 
  
        p:hover { 
            background-color:grey; 
            padding:10px; 
            cursor:pointer; 
        } 
    </style> 
</head> 
  
<body> 
    <div> 
        <h1 style="color:green;"> 
            GeeksforGeeks 
        </h1> 
          
        <h4>D3.js selection.html() Function</h4> 
  
        <p>Click Here!</p> 
    </div> 
  
    <script> 
        function func() { 
  
            // Selecting all p and setting 
            // the innerHTML of the p 
            var chk = d3.selectAll("p") 
                .html("<b>This is from .html</b>"); 
            var text = document.querySelector("p"); 
        } 
        let btn = document.querySelector("p"); 
        btn.addEventListener("click", func); 
    </script> 
</body> 
  
</html>

輸出：

範例2：下麵的示例使用null清除內容。

HTML

<!DOCTYPE html> 
<html lang="en"> 
  
<head> 
    <meta charset="UTF-8"> 
    <meta name="viewport" path1tent= 
        "width=device-width,initial-scale=1.0"> 
  
    <script src="https://d3js.org/d3.v4.min.js"> 
    </script> 
    <style> 
        p { 
            background-color:#f2f2f2; 
            padding:10px; 
            width:200px; 
            line-height:5px; 
        } 
  
        p:hover { 
            background-color:grey; 
            padding:10px; 
            cursor:pointer; 
        } 
    </style> 
</head> 
  
<body> 
    <div> 
        <h1 style="color:green;"> 
            GeeksforGeeks 
        </h1> 
  
        <h4>D3.js selection.html() Function</h4> 
  
        <p><b>Click Here</b></p> 
    </div> 
  
    <script> 
        function func() { 
  
            // Selecting p and setting the 
            // innerHTML of the p 
            var chk = d3.selectAll("p") 
                .html(null); 
            var text = document.querySelector("p"); 
        } 
        let btn = document.querySelector("p"); 
        btn.addEventListener("click", func); 
    </script> 
</body> 
  
</html>

輸出：

相關用法

注：本文由純淨天空篩選整理自tarun007大神的英文原創作品 D3.js selection.html() Function。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。