Scope
Scope prototype extensions
Import
_ <- fat.type.Scope
Alias
Keyset: a list of keys (List/Text)
Constructor
| Name | Signature | Brief |
|---|---|---|
| Scope | (val: Any) | Wrap val into a scope |
Prototype members
| Name | Signature | Brief |
|---|---|---|
| isEmpty | <> Boolean | Return true if size is zero |
| nonEmpty | <> Boolean | Return true if non-zero size |
| size | <> Number | Return number of entries |
| toText | <> Text | Return 'Scope' text literal |
| freeze | <> Void | Make the value immutable |
| seal | <> Void | Prevents scope growth |
| isSealed | <> Boolean | Check if scope is sealed |
| copy | <> Scope | Return deep copy of scope |
| keys | <> Keyset | Return list of scope keys |
| valuesOf | (t: Type): List | Get values matching type t |
| pick | (keys: Keyset): Scope | Filter scope by keys |
| omit | (keys: Keyset): Scope | Filter scope removing keys |
| vmap | (m: Method): Scope | Map values (m = v1 -> v2) |
| maybe | (key: Text): Option | Return Option wrapped value |
Example
_ <- fat.type.Scope
x = { num = 12, prop = 'other' }
x.size # yields 2