html table hidden

HTML table hiding is a very common technique that can make web pages more concise, beautiful and easy to read. Tables are one of the most commonly used elements in web design and can be used to display various data and information. However, sometimes tables are too long or too complex, making the page look cluttered. At this time, you need to use the hiding function of tables.

Table hiding can make the web page more concise and clear, and users can view or hide the content as needed. In web design, JavaScript is generally used to hide the content of tables, which is achieved by adding event listeners. The following are the specific steps:

1. In the HTML file, find the table that needs to be hidden. You can set the ID attribute or class attribute of the table to facilitate subsequent operations.
2. In the JavaScript file, obtain the table that needs to be hidden through the getElementById() or getElementsByClassName() method.
3. Add a click event to the table. When the user clicks on the table, this event will be triggered. In the event handler, use the style.display property to control the display and hiding of the table. If you want to hide the table, you can set the style.display property to "none". If you want to display the table, you can set the style.display property to "table" or other values.

Here is a simple example:

HTML code:

<table id="myTable">
  <tr>
    <th>姓名</th>
    <th>年龄</th>
    <th>性别</th>
  </tr>
  <tr>
    <td>张三</td>
    <td>22</td>
    <td>男</td>
  </tr>
  <tr>
    <td>李四</td>
    <td>25</td>
    <td>女</td>
  </tr>
  <tr>
    <td>王五</td>
    <td>30</td>
    <td>男</td>
  </tr>
</table>

<button id="hideTable">隐藏表格</button>
<button id="showTable">显示表格</button>

JavaScript code:

var table = document.getElementById("myTable");
var hideButton = document.getElementById("hideTable");
var showButton = document.getElementById("showTable");

hideButton.addEventListener("click", function() {
  table.style.display = "none";
});

showButton.addEventListener("click", function() {
  table.style.display = "table";
});

In the above example, we respectively Obtained the DOM elements of the table and two buttons, and then added click events to the two buttons. When the user clicks the Hide button, the event handler is triggered and the table's style.display property is set to "none", thereby hiding the table. When the user clicks the display button, another event handler is triggered to set the table's style.display property to "table" to display the table.

In addition to using JavaScript to hide the table, you can also use CSS to achieve it. There is a display attribute in CSS that can be used to control the display and hiding of elements. We can add the following styles to the CSS file:

table.hidden {
  display: none;
}

Then in the HTML code, add some class names to the table:

<table class="myTable hidden">
  <!-- 表格内容 -->
</table>

Here we have added two class names to the table, one is "myTable", one is "hidden". The "myTable" class name is used for style control, and the "hidden" class name is used to hide the table. When we need to hide the table, we only need to remove the "hidden" class name from the table to display the table:

var table = document.querySelector(".myTable");
table.classList.remove("hidden");

In this way, hiding the table through CSS can be more flexible and convenient. We only need to add or remove the class name in the HTML code to display and hide the table without writing a lot of JavaScript code.

In web design, table hiding is a very important skill. It can make web pages more concise, beautiful and easy to read, and improve user experience and user satisfaction. Whether it is implemented through JavaScript or CSS, we can flexibly use table hiding techniques according to needs to create a more excellent web design.

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