Equality and identity

As in most language, one can distinguish between physical equality and logical equality.

Atomics can only be compared logically. Their physically identity is totally opaque to you.

1 eq 1
    

1 eq 2
    

"foo" eq "bar"
    

"foo" ne "bar"
    

Two objects or arrays can be tested for logical equality as well, using deep-equal(), which performs a recursive comparison.

deep-equal({ "foo" : "bar" }, { "foo" : "bar" })
    

deep-equal({ "foo" : "bar" }, { "bar" : "foo" })
    

The physical identity of objects and arrays is not exposed to the user in the core JSONiq language itself. Some library modules might be able to reveal it, though.