Body: => Html on the Play platform?

Question

I just started using the Play and Scala platform. What does the body mean: => Html in the Play structure? Thanks.

Answer 1

This parameter by name

http://ofps.oreilly.com/titles/9780596155957/FunctionalProgramming.html#_call_by_name_call_by_value

Answer 2

For anyone who might stumble upon the same question:

It is called the by-name parameter , and it is evaluated only if it is used in the function body.

This link explains in detail the use of this notation.

Also see: Scala Documentation