How to check whether a checkbox is checked in jQuery?

 To check if a checkbox is checked using jQuery, you can use the prop() method to get the value of the "checked" property of the checkbox element.

Here's an example code snippet:

javascript
if ($('#myCheckbox').prop('checked')) {
    // Checkbox is checked
} else {
    // Checkbox is not checked
}

In this code, $('#myCheckbox') selects the checkbox element using its ID, and prop('checked') gets the value of the "checked" property. If the checkbox is checked, the prop() method will return true, and the code inside the if block will execute. If the checkbox is not checked, the prop() method will return false, and the code inside the else block will execute.

Alternatively, you can also use the is() method to check if the checkbox is checked, like this:

javascript
if ($('#myCheckbox').is(':checked')) {
    // Checkbox is checked
} else {
    // Checkbox is not checked
}

This code is equivalent to the first example, but uses the is() method to check if the checkbox is checked. The :checked selector matches all checked checkboxes, so $('#myCheckbox').is(':checked') returns true if the checkbox is checked.

jQuery, jQuery Interview Question and Answers, jQuery Tutorial