jquery delete display

jQuery is a commonly used JavaScript library that simplifies the operation and management of HTML documents. Among them, deleting display allows us to quickly hide or show elements. This article will introduce how to use jQuery to delete the display attribute in CSS, as well as its practical application in development.

1. How to delete the display attribute

In HTML, we can use the display attribute of CSS to set the display state of the element. For example, if we want to hide an element, we can set its display attribute to "none", and if we want to display it, set it to "block" or other appropriate attributes. But what if we want to remove this attribute in JS?

If using jQuery, we can use the .css() method, which can get or set the CSS properties of the element. We can set the second parameter in this method to null to remove the element's display attribute. The specific code is as follows:

$(selector).css("display", null);

For example, if you want to delete the display attribute of the element id "myDiv", you can use the following code:

$("#myDiv").css("display", null);

This will delete the display attribute of the element "#myDiv", and restore it to its default state.

2. How to use it in actual development

So, in actual development, what is the use of deleting the display attribute?

1. Hide or show elements

During the development process, we may need to dynamically control the display or hidden state of certain elements. And using the method mentioned above, we can easily implement this function in code. For example, to display an element when a button is clicked, you can use the following code:

$("#myButton").click(function(){
  $("#myDiv").css("display", "block");
});

When the button is clicked, the element "#myDiv" will be displayed.

2. Paging and loading more

In web development, we often need to implement paging and loading more functions. At this time, you can use the display attribute to control the display or hiding of elements on the page. For example, if we want to add more content to the page using jQuery, we can use the following code:

// 使用ajax加载更多数据
$.ajax({
  url: "moreData.php",
  success: function(data){
    // 将新数据添加到页面中
    $("#content").append(data);
    // 将新内容显示出来
    $("#content").css("display", "block");
  }
});

In this example, we use ajax to get more data from the "moreData.php" file, and then Added to an element named "content". Finally, we set the display attribute of the "content" element to "block" to display the new content.

3. Element Animation

If you are designing animation effects for your website, then removing the display attribute will be very useful. For example, if you want to fade in an element, you can use the following code:

// 在2秒内将“myDiv”元素淡入
$("#myDiv").fadeIn(2000, function(){
  // 淡入完成后执行的操作
});

In this example, we use the fadeIn() method to fade the "myDiv" element in for 2 seconds.

Conclusion

Through this article, we can clearly understand the method of deleting the display attribute and how to use it in actual development. By using jQuery, we can quickly and dynamically control the display and hidden state of HTML elements, making development easier and more interesting.

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