Returns entity identities that have the selected type or implement the selected trait.
Signature
C means a concrete type or trait selector. The returned entity handles are ordered by creation and are a snapshot value; later lifecycle changes do not mutate the returned list.
Returns
Examples
Query matching entities
The selector makes the query function value concrete.
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Expected output
1
Rust definition
Rust interpreter builtin dispatch; C is a checked concrete type or trait selector.