How to control the display and hiding of check boxes with Jquery

When writing web pages, we often use check boxes for multi-selection operations, but sometimes we need to hide certain options and only display them when other options are selected. At this time, you need to use Jquery's checkbox hiding function.

Jquery is a Javascript library that provides many functions and methods that simplify Javascript operations. Among them are methods for operating check boxes. You can easily hide and display check boxes through Jquery.

There are two main ways to hide check boxes: one is to use CSS styles to hide check boxes, and the other is to use Jquery functions to control the display and hiding of check boxes. Below we will introduce the specific implementation of these two methods respectively.

Use CSS styles to hide check boxes:

In the HTML page, we can add a CSS style to the check box to be hidden so that it will not be displayed. Specifically, we can set the display attribute of the check box to none, as shown below:

<input type="checkbox" id="checkbox1" style="display:none;">

It should be noted that this method only hides the appearance of the check box, but the check box Still exists and can still be selected or unselected. If you need to control the actual state of the check box, such as disabling or enabling the check box, you still need to use the Jquery function.

Use Jquery functions to hide check boxes:

Jquery provides many operation functions for check boxes, which can easily hide and display check boxes. The most commonly used functions are hide() and show().

hide() function is used to hide the selected element. It can accept a parameter to specify the hidden animation effect and speed of the element. The show() function is the opposite of the hide() function and is used to display the selected element.

The following is a sample code that demonstrates how to use Jquery functions to hide and show check boxes:

<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
<script>
$(document).ready(function(){
    $('#checkbox1').change(function(){
        if(this.checked){
            $('#hidden_checkbox').show();
        }
        else{
            $('#hidden_checkbox').hide();
        }
    });
});
</script>

<input type="checkbox" id="checkbox1">
<input type="checkbox" id="hidden_checkbox" style="display:none;">

In the above code, we are the main check box (id is checkbox1) Added change event listener. When the check box is selected, Jquery will display the hidden check box (id is hidden_checkbox). When the check box is unchecked, Jquery will hide the hidden check box again.

It should be noted that when using Jquery to hide the check box, we do not recommend using CSS styles to hide the check box. This is because, when using CSS styles to hide the checkbox, even if the checkbox is hidden, it will still participate in the form submission, which will cause some unnecessary trouble. In contrast, using Jquery functions to control the display and hiding of check boxes is more intuitive and convenient, and is in line with the principles of code optimization.

To sum up, Jquery’s checkbox hiding function is a very practical function in web development. When writing web pages, we can choose the appropriate method to hide and display check boxes based on actual needs. If you want to know more about how to operate Jquery, you might as well go to the official documentation to find relevant content.

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