Uncaught TypeError: undefined is not a function

[TimMuchena]

Hello people

I am having an issue where I get the error as shown below. I am able to display the fist/master page. I get the error when I try to navigate to the detail page to view details of a selected item

Kind regards

[Former Member]

This is a common JavaScript error that happens when you try to call a function before it is defined. You get "'undefined' is not a function" error when you try to execute a function that is uninitialized or improperly initialized . It means that the expression did not return a function object. So you have to figure out what you are trying to execute isn't a function.

In Javascript , when you execute a function, it's evaluated like the following:

• expression.that('returns').aFunctionObject(); // js execute ->
• expression.that('returns').aFunctionObject // what the JS engine does

That expression may be complex. So when you get undefined is not a function it means that expression did not return a function object. So you have to figure out what you are trying to execute isn't a function.