How to Accurately Check a Checkbox's Checked Status with jQuery?

Checking the Checked Property of a Checkbox with jQuery

Problem:

You need to determine the checked status of a checkbox using jQuery and take an action based on the result.

jQuery Code:

The following jQuery code attempts to check the checked property of the "isAgeSelected" checkbox but returns false by default:

if ($('#isAgeSelected').attr('checked')) {
  $("#txtAge").show();
} else {
  $("#txtAge").hide();
}

Correct Solution:

To query the checked property successfully, you can use the following code:

Option 1:

Access the DOM element directly using JavaScript:

if(document.getElementById('isAgeSelected').checked) {
    $("#txtAge").show();
} else {
    $("#txtAge").hide();
}

Option 2:

Use jQuery's "toggle" function for a cleaner approach:

$('#isAgeSelected').click(function() {
    $("#txtAge").toggle(this.checked);
});

This code handles the click event on the "isAgeSelected" checkbox and toggles the visibility of the "txtAge" element based on the checked state.

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