Why Isn\'t My JavaScript Code Working on JSFiddle.net?

JavaScript Code Not Running on JSFiddle.net

You've encountered an issue where your JavaScript code functions seamlessly on a live site but fails to execute on JSFiddle.net. This is likely due to a scoping issue.

The BetterSelect class and its methods are defined within the window.onload function. This means they are only accessible within that function's scope and cannot be referenced globally as you've done in the HTML markup.

To resolve this issue, you have several options:

Option A: Convert the functions to global variables

window.BetterSelect = function(oSelList) {...};
window.fillList = function() {...};
window.findIt = function() {...};

Option B: Implement unobtrusive JavaScript

Separate your HTML from JavaScript by attaching event handlers to DOM elements dynamically from the JS code. This will prevent the need for direct references to functions in the HTML.

Option C: Disable JSFiddle's wrap-onload feature

Change the 'Wrap' setting in JSFiddle to 'No wrap (head)' or 'No wrap (body)'.

Recommendation:

Option B is the recommended approach as it adheres to best practices by isolating HTML and JavaScript. It also enhances the code's maintainability and allows for easier implementation of further modifications.

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