How to disable/enable input field on click with jQuery

Question

How to properly enable/disable input field on click with jQuery?

I was experimenting with:

$(\"#FullName\").removeAttr(\'disabled\');

Answer 1

$('#checkbox-id').click(function()
{
    //If checkbox is checked then disable or enable input
    if ($(this).is(':checked'))
    {
        $("#to-enable-input").removeAttr("disabled"); 
        $("#to-disable-input").attr("disabled","disabled");
    }
    //If checkbox is unchecked then disable or enable input
    else
    {
        $("#to-enable-input").removeAttr("disabled"); 
        $("#to-disable-input").attr("disabled","disabled");
    }
});