The operand n used in this context is not valid

I tried implementing the example from the Backbone manual, but it doesn't seem to be working as expected.

var View = Backbone.View.extend({
    tagName: 'li'
});

var ex_view = new View();
console.log(ex_view.el);

This code snippet throws an error:

TypeError: invalid 'in' operand n

However, when I made a small change and used this code instead:

var ex_view = new Backbone.View({
    tagName: 'li'
});

console.log(ex_view.el);

The console output was:

<li>

Why is the example from the manual not working properly? And why does my modified code not show the closing tag in the console?

Answer №1

Just installed the latest version of Underscore and everything is functioning perfectly! Grateful for the help!

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