Std.HashMap.filter
1 declaration
fn
filter: &Std.HashMap.HashMap[K, V] -> fn(K, V) -> Bool -> Std.HashMap.HashMap[K, V] where K: Eq + HashThis is a callable function.
What it does
A map holding only the pairings a test accepts.
Read the signature
- The text after the name is the type checked by Pudu.
- Read arrows from left to right: inputs come first, and the final type is returned.
- & borrows a value for this call instead of moving or copying it.
- Names inside [ ] are type arguments, such as the item type held by a collection.