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I have seen the ?= operator used for setting default values when defining routes in Play. But I cannot find any references to it the documentation. Where is this operator documented? Is this a Scala thing or a Play Framework thing?

Example Usage: 

GET  /users  controllers.Application.users(max:java.lang.Integer ?= 50, page:java.lang.Integer ?= 0)

(taken from: How to handle optional query parameters in Play framework).

ordonezalex
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Mike Rylander
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1 Answers1

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This is specific to the Play Framework. It is (briefly) documented in the routing section.

conf/routes is the configuration file used by the router.

The routes file is not Scala; it only resembles it.

ordonezalex
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