jQuery Mobile中的翻转切换开关错误

Question

I need to made a calculator for an app with Jquery Mobile, but it doesn´t work whit the flip toogle switch, this is my script:

<script type="text/javascript">
function dosis() {
    $peso = $('#peso').get(0).value
    $dosis = $('#dosis').get(0).value
    $concentracion = $('#concentracion').get(0).value

    if ($peso=='' || $dosis=='') {
        alert('Debes llenar los campos de Peso y Dosis');
        exit;
    }

    if ($concentracion=='') {
    $resultado = ($peso * $dosis);
    $resultado = Math.round($resultado*Math.pow(10,2))/Math.pow(10,2);
    $('#resultado').html('Debes administar <span style="color: #009A8F; font-size: 30px;">' + $resultado + '</span> mg. de farmaco.<br />');
    } 

    else {
        $("#flipswitch").on("change", function () {
                if ($(this).val() == "off")

    $resultado = ($peso * $dosis);
    $resultado = Math.round($resultado*Math.pow(10,2))/Math.pow(10,2);
    $resultado2 = (($peso * $dosis) / ($concentracion * 10));
    $resultado2 = Math.round($resultado2*Math.pow(10,2))/Math.pow(10,2);

    $('#resultado').html('Debes administar <span style="color: #009A8F; font-size: 30px;">' + $resultado + '</span> mg. de farmaco.<br /> Dedes administar <span style="color: #009A8F; font-size: 30px;">'+ $resultado2 + '</span> ml. del producto.');

            else {

    $resultado = ($peso * $dosis);
    $resultado = Math.round($resultado*Math.pow(10,2))/Math.pow(10,2);
    $resultado2 = (($peso * $dosis) / ($concentracion));
    $resultado2 = Math.round($resultado2*Math.pow(10,2))/Math.pow(10,2);

    $('#resultado').html('Debes administar <span style="color: #009A8F; font-size: 30px;">' + $resultado + '</span> mg. de farmaco.<br /> Dedes administar <span style="color: #009A8F; font-size: 30px;">'+ $resultado2 + '</span> ml. del producto.');
    exit;
}};
});</script>

Something is wrong with the script?

Answer 1

There are several errors in your code.

A few practical advice:

1. Use an integrated development environment (IDE) to write better code. See for instance this thread for suggestions. IDEs have built-in error-checking and let you know where and what you code misses.
2. You might also want to use an online validator, eg http://www.jslint.com/
3. As Eihwas indicates, correct code layout will help a lot when other people are to read your code. You can fix your code layout with tools like this, http://jsbeautifier.org/ , great tools, but it's better to learn to code correctly. It is way easier to read and maintain well-written code.

If your code still does not work, please elaborate your question.