Issue with BackboneJS TypeError

I attempted to use the example below, but I encountered an error stating "TypeError: _.has is not a function".

Example:

I have experimented with different versions of jQuery and Backbone (uncompressed), yet the same error persists. Can anyone offer assistance with this issue?

Thank you in advance.

Answer №1

Ensure you are using Underscore version 1.3.1 or higher, and that it is correctly loaded before Backbone.

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