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Editorial Team
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Asked: 2026-06-15T20:37:08+00:00

I followed one of the basic tutorials on the knockout.js website and now I’m

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I followed one of the basic tutorials on the knockout.js website and now I’m just trying to make it work on localhost. In the head, I have included two files: knockout.js and misc_form.js.

<head>
<script src="/knockout.js"></script>
<script src="/misc_form.js"></script>
</head>

I’m going to omit the code for misc_form.js because I didn’t modify it and it works 100% on the live knockout.js tutorial.

Here’s the HTML

//form.php
function display_form(){
?>
<table>
    <thead><tr>
    <th>Passenger name</th><th>Meal</th><th>Surcharge</th><th></th>
    </tr></thead>
    <!-- Todo: Generate table body -->
    <tbody data-bind="foreach: seats">
    <tr>
        <td><input data-bind="value: name" /></td>
        <td><select data-bind="options: $root.availableMeals, value: meal, optionsText: 'mealName'"></select></td>
        <td data-bind="text: formattedPrice"></td>
        <td><a href="#" data-bind="click: $root.removeSeat">Remove</a></td>
    </tr>       
</tbody>
</table>
<button data-bind="click: addSeat">Reserve another seat</button>
 <?
 }

Edit – I changed the path to the files and now I’m getting the following error

Uncaught TypeError: Cannot read property 'nodeType' of null  //in reference to knockout.js
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1 Answer

  1. Editorial Team

    Check the paths for your script files, those look strange. Try visiting http://localhost/Applications/XAMPP/xamppfiles/htdocs/misc_form.js in a web browser, do you see your JavaScript code?

    From the urls, I’m guessing they should be:

    <head>
<script src="/knockout.js"></script>
<script src="/misc_form.js"></script>
</head>

    since htdocs is likely the folder which gets served up as /.

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