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How to append data to an element using JavaScript?

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2023-08-27 14:49:09797browse

如何使用 JavaScript 将数据附加到元素？

We can use JavaScript to attach data to the element by adding content to the element using the .innerHTML attribute. This can be done by using the = operator to add new content to the existing content within . We can also add new child elements to using the .appendChild() method.

is a block-level element used to create sections or sections in HTML documents. Elements are typically used to group elements together, such as paragraphs, headings, or images. Elements can also be used to style part of a document, such as adding a background color or border.

method

To append data to a div element using JavaScript, you first need to select the element using a selector and then append the data to the selected element using the append() or appendChild() method.

Here is an example of how to append a paragraph element to a div element -

var div = document.querySelector('div');
var p = document.createElement('p');
p.textContent = 'This is some data that will be appended to the div element';
div.appendChild(p);

Example

Suppose you have a div with an id of "content" -

<!DOCTYPE html>
<html>
<head>
   <title>Append Data to DIV</title>
</head>
   <body>
      <div id='content'>
         <p style='color:black;'>I existed before</p>
      </div>
      <script>
         var div = document.getElementById('content');
         var p = document.createElement('p');
         p.style.color = 'black';
         p.textContent = 'I was appended to the div';
         div.appendChild(p);
      </script>
   </body>
</html>

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JavaScript html 运算符 append innerHTML 选择器
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