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Asked: 2026-06-16T20:39:33+00:00

I have function which is removing and adding class into input tag, i want

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I have function which is removing and adding class into input tag, i want to when we add or remove class then one function should alert that you have made changes.

<head>
    <script type="text/javascript">
        $(function() {
            $('a').click(function() {
                $('input').removeClass()
                var cl = $(this).attr('class')
                $('input').addClass(cl)
            })
        })

        function activitydone() {
            alert('class change')
        }
    </script>

    <style>
        .first { border:solid 1px #F00 }
        .second { border:solid 1px #0F0 }
        .third { border:solid 1px #00F }
    </style>
</head>

<body>
    <input type="text" onchange="activitydone()" />

    <a href="#" class="first">first</a>
    <a href="#" class="second">second</a>
    <a href="#" class="third">third</a>
</body>
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1 Answer

  1. Editorial Team

    Unless this is an incomplete example…

    <script type="text/javascript">
    $(function() {
        $('a').click(function() {
            $('input').removeClass()
            var cl = $(this).attr('class')
            $('input').addClass(cl)
            activitydone(); // <-- Do this?
        })
    })

    function activitydone() {
        alert('class change')
    }
</script>
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