Treat expressions
JSONiq follows the W3C standard for ordered and unordered expressions. The following explanations, provided as an informal summary for convenience, are non-normative.
Figure 65. TreatExpr
A treat expression checks that a JSONiq value matches a given sequence type. If it is not the case, an error is raised.
Example 147. Treat as expression
1 treat as integer
Result (run with Zorba): 1
Example 148. Treat as expression
1 treat as string
Result (run with Zorba): An error was raised: "xs:integer" cannot be treated as type xs:string
Example 149. Treat as expression
"foo" treat as string
Result (run with Zorba): foo
Example 150. Treat as expression
{ "foo" : "bar" } treat as object
Result (run with Zorba): { "foo" : "bar" }
Example 151. Treat as expression
({ "foo" : "bar" }, { "bar" : "foo" }) treat as json-item+
Result (run with Zorba): { "foo" : "bar" } { "bar" : "foo" }
Example 152. Treat as expression
[ 1, 2, 3 ] treat as array?
Result (run with Zorba): [ 1, 2, 3 ]
Example 153. Treat as expression
() treat as ()
Result (run with Zorba):