It is a standard JavaScript nested-name string, made up by 1 or more JSName strings, joined by a dot:

module_1.$name2._ctrl3

• It cannot start or end with a dot
• It cannot have any spaces in between
• It is treated as case-sensitive

The string represents a full controller name, depending on how many JSName entries it contains:

• When it contains a single JSName, it always refers to an app-level controller, as added with ERoot.addController
• When it contains more than one JSName, then the first one is a module name, as added with ERoot.addModule, followed by either a simple or nested controller name in that module.

It is a string that complies with the open-name syntax for JavaScript variables:

• It must contain 1 or more symbols
• It is treated as case-sensitive
• Allowed symbols are: a-z, A-Z, 0-9, $ and _
• It cannot start with a digit (0-9)