@maps
Import this module with import @maps.
| Function | Signature | Description |
|---|---|---|
is_empty |
(m map[K:V]) -> bool |
Check if map is empty |
has_key |
(m map[K:V], key K) -> bool |
Check if key exists |
contains_value |
(m map[K:V], value V) -> bool |
Check if any entry has the given value |
get_keys |
(m map[K:V]) -> [K] |
Get all keys as an array |
get_values |
(m map[K:V]) -> [V] |
Get all values as an array |
get_or_default |
(m map[K:V], key K, default V) -> V |
Get value or return default if key missing |
remove_key |
(&m map[K:V], key K) |
Remove key-value pair; does nothing if key absent |
clear |
(&m map[K:V]) |
Remove all entries |
merge |
(m1 map[K:V], m2 map[K:V]) -> map[K:V] |
Combine two maps (m2 overwrites on conflict) |
is_equal |
(a map[K:V], b map[K:V]) -> bool |
Structural equality. Compares counts, then iterates the first map’s entries in insertion order looking each key up in the second. K and V must each be a primitive (i64, u64, f64, bool, char, u8, sized variants) or string; maps with nested-composite values are rejected at compile time. |
The == and != operators on maps are not allowed; use maps.is_equal(a, b) for equality. Maps have no defined ordering, so < / <= / > / >= on maps is also rejected.
Use len(m) to get the number of entries (builtin, no import needed).