Prisma

what's the difference of exclamation mark.  `[String!]` or `[String!]! or `[String] or `[String]!

the exclamation indicates that the field is required to have a value. [String!] means that undefined, null, [], and ['hi'] are valid, but [undefined] is not valid. [String]! means that [], [undefined], ['hi'] are valid but undefined, null are not valid

:heavy_multiplication_x: The scalar field `objectives` has the wrong format: `[String]!` Possible Formats: `String`, `String!`, `[String!]` or `[String!]!

<@UCWUGJ8E7> but it's ok to define [String]!   as graphql query return type.

FYI. I have no experience with Prisma or graph.cool. Just trying to explain the !

I just stumbled upon Prisma yesterday :wink:

confused about the restriction of []! <@U3D8LQ8HK>

I think that []! means a list/array that must have a value, so [], or [undefined] would work, but undefined/null would not work

the list/array must exists, but nothing is being said about its element values