Forked from JadenGeller/Swift Dictionary Map Filter Reduce.swift
Last active
August 29, 2015 14:25
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| extension Dictionary { | |
| init(_ elements: [Element]){ | |
| self.init() | |
| for (k, v) in elements { | |
| self[k] = v | |
| } | |
| } | |
| func map<U>(transform: Value -> U) -> [Key : U] { | |
| return Dictionary<Key, U>(Swift.map(self, { (key, value) in (key, transform(value)) })) | |
| } | |
| func map<U>(transform: Key -> U) -> [U : Value] { | |
| return Dictionary<U, Value>(Swift.map(self, { (key, value) in (transform(key), value) })) | |
| } | |
| func map<T : Hashable, U>(transform: (Key, Value) -> (T, U)) -> [T : U] { | |
| return Dictionary<T, U>(Swift.map(self, transform)) | |
| } | |
| func filter(includeElement: Element -> Bool) -> [Key : Value] { | |
| return Dictionary(Swift.filter(self, includeElement)) | |
| } | |
| func reduce<U>(initial: U, @noescape combine: (U, Element) -> U) -> U { | |
| return Swift.reduce(self, initial, combine) | |
| } | |
| } |
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