ExSwift

Set of Swift extensions for standard types and classes.

Installation

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Use it

components.takeFirst() { $0.completed }

ExSwift extensions
Utilities
- Class Methods
- Operators

Extensions

Array

Examples in the Wiki

Instance Methods

Name	Signature
`first`	`first () -> Element?`
`last`	`last () -> Element?`
`get`	`get (index: Int) -> Element?`
`remove`	`remove <U: Equatable> (element: U)`
`at`	`at (indexes: Int...) -> Array`
`take`	`take (n: Int) -> Array`
`takeWhile`	`takeWhile (condition: (Element) -> Bool) -> Array`
`takeFirst`	`takeFirst (condition: (Element) -> Bool) -> Element?`
`tail`	`tail (n: Int) -> Array`
`skip`	`skip (n: Int) -> Array`
`skipWhile`	`skipWhile (condition: (Element) -> Bool) -> Array`
`contains`	`contains <T: Equatable> (item: T...) -> Bool`
`difference`	`difference <T: Equatable> (values: [T]...) -> [T]`
`intersection`	`intersection <U: Equatable> (values: [U]...) -> Array`
`union`	`union <U: Equatable> (values: [U]...) -> Array`
`unique`	`unique <T: Equatable> () -> [T]`
`indexOf`	`indexOf <T: Equatable> (item: T) -> Int?`
`indexOf`	`indexOf (condition: Element -> Bool) -> Int?`
`lastIndexOf`	`lastIndexOf <T: Equatable> (item: T) -> Int?`
`zip`	`zip (arrays: Array<Any>...) -> [[Any?]]`
`partition`	`partition (var n: Int, var step: Int? = nil) -> [Array]` `partition (var n: Int, var step: Int? = nil, pad: Element[]?) -> [Array]`
`partitionAll`	`partitionAll (var n: Int, var step: Int? = nil) -> [Array]`
`partitionBy`	`partitionBy <T: Equatable> (cond: (Element) -> T) -> [Array]`
`shuffle`	`shuffle ()`
`shuffled`	`shuffled () -> Array`
`sample` (random)	`sample (size n: Int = 1) -> [T]`
`max`	`max <T: Comparable> () -> T`
`min`	`min <T: Comparable> () -> T`
`each`	`each (call: (Element) -> ())` `each (call: (Int, Element) -> ())`
`eachRight`	`eachRight (call: (Element) -> ())` `eachRight (call: (Int, Element) -> ())`
`any`	`any (call: (Element) -> Bool) -> Bool`
`all`	`all (call: (Element) -> Bool) -> Bool`
`reject`	`reject (exclude: (Element -> Bool)) -> Array`
`pop`	`pop() -> Element`
`push`	`push(newElement: Element)`
`shift`	`shift() -> Element`
`unshift`	`unshift(newElement: Element)`
`insert`	`insert (newArray: Array, atIndex: Int)`
`groupBy`	`groupBy <U> (groupingFunction group: (Element) -> (U)) -> [U: Array]`
`countBy`	`countBy <U> (groupingFunction group: (Element) -> (U)) -> [U: Int]`
`countWhere`	`countWhere (test: (Element) -> Bool) -> Int`
`reduce`	`reduce (combine: (Element, Element) -> Element) -> Element?`
`reduceRight`	`reduceRight <U>(initial: U, combine: (U, Element) -> U) -> U`
`mapFilter`	`mapFilter <V> (mapFunction map: (Element) -> (V)?) -> [V]`
`implode`	`implode <C: ExtensibleCollection> (separator: C) -> C?`
`flatten`	`flatten <OutType> () -> [OutType]`
`flattenAny`	`flattenAny () -> [AnyObject]`
`toDictionary`	`toDictionary <U> (keySelector:(Element) -> U) -> [U: Element]`
`toDictionary`	`toDictionary <K, V> (transform: (Element) -> (key: K, value: V)?) -> [K: V]`
`cycle`	`cycle (n: Int? = nil, block: (T) -> ())`
`bSearch`	`bSearch (block: (T) -> (Bool)) -> T?`
`bSearch`	`bSearch (block: (T) -> (Int)) -> T?`
`sortUsing`	`sortUsing<U:Comparable>(block: ((T) -> U)) -> [T]`
`transposition`	`transposition (array: [[T]]) -> [[T]]`
`permutation`	`permutation (length: Int) -> [[T]]`
`repeatedPermutation`	`repeatedPermutation(length: Int) -> [[T]]`
`combination`	`combination (length: Int) -> [[Element]]`
`repeatedCombination`	`repeatedCombination (length: Int) -> [[Element]]`

Class Methods

Name	Signatures
`range`	`range <U: ForwardIndex> (range: Range<U>) -> Array<U>`

Operators

Name	Signature	Function
`-`	`- <T: Equatable> (first: Array<T>, second: Array<T>) -> Array<T>`	Difference
`-`	`- <T: Equatable> (first: Array<T>, second: T) -> Array<T>`	Element removal
`&`	`& <T: Equatable> (first: Array<T>, second: Array<T>) -> Array<T>`	Intersection
`\|`	`\| (first: Array, second: Array) -> Array`	Union
`* Int`	`* <ItemType> (array: ItemType[], n: Int) -> [ItemType]`	Returns a new array built by concatenating int copies of self
`* String`	`* (array: String[], separator: String) -> String`	Equivalent to `array.implode(String)`
`[rangeAsArray: x..y]` `[rangeAsArray: x...y]`	`subscript(#rangeAsArray: Range<Int>) -> Array`	Returns the sub-array from index x to index y
`[x, y, ...]`	`subscript(first: Int, second: Int, rest: Int...) -> Array`	Returns the items at x, y

Int

Examples in the Wiki

Properties

Name
`NSTimeInterval``years`
`NSTimeInterval``year`
`NSTimeInterval``days`
`NSTimeInterval``day`
`NSTimeInterval``hours`
`NSTimeInterval``hour`
`NSTimeInterval``minutes`
`NSTimeInterval``minute`
`NSTimeInterval``seconds`
`NSTimeInterval``second`

Instance Methods

Name	Signatures
`times`	`times <T> (call: (Int) -> T)` `times <T> (call: () -> T)` `times (call: () -> ())`
`isEven`	`isEven () -> Bool`
`isOdd`	`idOdd () -> Bool`
`upTo`	`upTo (limit: Int, call: (Int) -> ())`
`downTo`	`downTo (limit: Int, call: (Int) -> ())`
`clamp`	`clamp (range: Range<Int>) -> Int` `clamp (min: Int, max: Int) -> Int`
`isIn`	`isIn (range: Range<Int>, strict: Bool = false) -> Bool`
`digits`	`digits () -> Array<Int>`
`abs`	`abs () -> Int`
`gcd`	`gcd (n: Int) -> Int`
`lcm`	`lcm (n: Int) -> Int`

Class Methods

Name	Signatures
`random`	`random(min: Int = 0, max: Int) -> Int`

Float

Examples in the Wiki

Instance Methods

Name	Signature
`abs`	`abs () -> Float`
`sqrt`	`sqrt () -> Float`
`round`	`round () -> Float`
`ceil`	`ceil () -> Float`
`floor`	`floor () -> Float`
`clamp`	`clamp (min: Float, _ max: Float) -> Float`

Class Methods

Name	Signatures
`random`	`random(min: Float = 0, max: Float) -> Float`

String

Examples in the Wiki

Properties

Name
`length`
`capitalized`

Instance Methods

Name	Signature
`explode`	`explode (separator: Character) -> [String]`
`at`	`at (indexes: Int...) -> [String]`
`matches`	`matches (pattern: String, ignoreCase: Bool = false) -> [NSTextCheckingResult]?`
`insert`	`insert (index: Int, _ string: String) -> String`
`ltrimmed`	`ltrimmed () -> String`
`ltrimmed`	`ltrimmed (set: NSCharacterSet) -> String`
`rtrimmed`	`rtrimmed () -> String`
`rtrimmed`	`rtrimmed (set: NSCharacterSet) -> String`
`trimmed`	`trimmed () -> String`
`rtrimmed`	`rtrimmed (set: NSCharacterSet) -> String`
`toDouble`	`toDouble() -> Double?`
`toFloat`	`toFloat() -> Float?`
`toUInt`	`toUInt() -> UInt?`
`toBool`	`toBool() -> Bool?`
`toDate`	`toDate(format : String? = "yyyy-MM-dd") -> NSDate?`
`toDateTime`	`toDateTime(format : String? = "yyyy-MM-dd hh-mm-ss") -> NSDate?`

Class Methods

Name	Signature
`random`	`func random (var length len: Int = 0, charset: String = "...") -> String`

Operators

Name	Signature
`[x]`	`subscript(index: Int) -> String?`
`[x..y]` `[x...y]`	`subscript(range: Range<Int>) -> String`
`[x, y, z]`	`subscript (indexes: Int...) -> [String]`
`S * n`	`* (first: String, second: Int) -> String`
`=~`	`=~ (string: String, pattern: String) -> Bool` `=~ (string: String, options: (pattern: String, ignoreCase: Bool)) -> Bool` `=~ (strings: [String], pattern: String) -> Bool` `=~ (strings: [String], options: (pattern: String, ignoreCase: Bool)) -> Bool`
`\|~`	`\|~ (string: String, pattern: String) -> Bool` `\|~ (string: String, options: (pattern: String, ignoreCase: Bool)) -> Bool`

Range

Examples in the Wiki

Instance Methods

Name	Signatures
`times`	`times (call: (T) -> ())` `times (call: () -> ())`
`each`	`each (call: (T) -> ())`
`toArray`	`toArray () -> [T]`

Class Methods

Name	Signature
`random`	`random (from: Int, to: Int) -> Range<Int>`

Operators

Name	Signature	Function
`=`	`== <U: ForwardIndex> (first: Range<U>, second: Range<U>) -> Bool`	Compares 2 ranges

Dictionary

Examples in the Wiki

Instance Methods

Name	Signatures
`difference`	`difference <V: Equatable> (dictionaries: [Key: V]...) -> [Key: V]`
`union`	`union (dictionaries: [Key: Value]...) -> [Key: Value]`
`intersection`	`intersection <K, V where K: Equatable, V: Equatable> (dictionaries: [K: V]...) -> [K: V]`
`has`	`has (key: Key) -> Bool`
`map`	`map <K, V> (mapFunction map: (Key, Value) -> (K, V)) -> [K: V]`
`mapFilter`	`mapFilter <K, V> (mapFunction map: (Key, Value) -> (K, V)?) -> [K: V]`
`mapValues`	`mapValues <V> (mapFunction map: (Key, Value) -> (V)) -> [Key: V]`
`mapFilterValues`	`mapFilterValues <V> (mapFunction map: (Key, Value) -> V?) -> [Key: V]`
`each`	`each(eachFunction each: (Key, Value) -> ())`
`filter`	`filter(testFunction test: (Key, Value) -> Bool) -> [Key: Value]`
`merge`	`merge (dictionaries: [Key: Value]...) -> [Key: Value]`
`shift`	`shift () -> (Key, Value)`
`groupBy`	`groupBy <T> (groupingFunction group: (Key, Value) -> (T)) -> [T: Array<Value>]`
`countBy`	`countBy <T> (groupingFunction group: (Key, Value) -> (T)) -> [T: Int]`
`countWhere`	`countWhere (test: (Key, Value) -> (Bool)) -> Int`
`any`	`any (test: (Key, Value) -> (Bool)) -> Bool`
`all`	`all (test: (Key, Value) -> (Bool)) -> Bool`
`reduce`	`reduce <U> (initial: U, combine: (U, Element) -> U) -> U`
`pick`, `at`	`pick (keys: [Key]) -> Dictionary` `pick (keys: Key...) -> Dictionary` `at (keys: Key...) -> Dictionary`
`toArray`	`toArray <V> (mapFunction map: (Key, Value) -> V) -> [V]`

Operators

Name	Signature	Function
`-`	`- <K, V: Equatable> (first: Dictionary<K, V>, second: Dictionary<K, V>) -> Dictionary<K, V>`	Difference
`&`	`& <K, V: Equatable> (first: Dictionary<K, V>, second: Dictionary<K, V>) -> Dictionary<K, V>`	Intersection
`\|`	`\| (first: Dictionary, second: Dictionary) -> Dictionary`	Union

NSArray

Examples in the Wiki

Instance Methods

Name	Signatures
`cast`	`cast <OutType> () -> [OutType]`
`flatten`	`flatten <OutType> () -> [OutType]`
`flattenAny`	`flattenAny () -> [AnyObject]`

SequenceOf

The following operations can be performed on sequences and are evaluated lazily. Each operation only takes the data it requires from the source sequence in order to return its result.

The Sequence protocol cannot be extended, hence the following are extensions to SequenceOf. They can be used as follows:

var source: Sequence = ...
var filteredSequence = SequenceOf(source).filter { ... }

Instance Methods

Name	Signatures
`first`	`first () -> T?`
`any`	`any (call: (T) -> Bool) -> Bool`
`get`	`get (index: Int) -> T?`
`get`	`get (range: Range<Int>) -> SequenceOf<T>`
`indexOf`	`indexOf <U: Equatable> (item: U) -> Int?`
`filter`	`filter(include: (T) -> Bool) -> SequenceOf<T>`
`reject`	`reject (exclude: (T -> Bool)) -> SequenceOf<T>`
`skipWhile`	`skipWhile(condition:(T) -> Bool) -> SequenceOf<T>`
`skip`	`skip (n:Int) -> SequenceOf<T>`
`contains`	`contains<T:Equatable> (item: T) -> Bool`
`take`	`take (n:Int) -> SequenceOf<T>`
`takeWhile`	`takeWhile (condition:(T?) -> Bool) -> SequenceOf<T>`

Double

Examples in the Wiki

Instance Methods

Name	Signature
`abs`	`abs () -> Double`
`sqrt`	`sqrt () -> Double`
`round`	`round () -> Double`
`ceil`	`ceil () -> Double`
`floor`	`floor () -> Double`
`clamp`	`clamp (min: Double, _ max: Double) -> Double`
`roundToNearest`	`roundToNearest(increment: Double) -> Double`

Class Methods

Name	Signatures
`random`	`random(min: Double = 0, max: Double) -> Double`

NSDate

Properties

Name	Signatures
`year`	`Int`
`month`	`Int`
`weekday`	`Int`
`weekMonth`	`Int`
`days`	`Int`
`hours`	`Int`
`minutes`	`Int`
`seconds`	`Int`

Instance Methods

Name	Signatures
`add`	`add(seconds:Int=0, minutes:Int = 0, hours:Int = 0, days:Int = 0, weeks:Int = 0, months:Int = 0, years:Int = 0) -> NSDate`
`addSeconds`	`addSeconds (seconds:Int) -> NSDate`
`addMinutes`	`addMinutes (minute:Int) -> NSDate`
`addHours`	`addHours(hours:Int) -> NSDate`
`addDays`	`addDays(days:Int) -> NSDate`
`addWeeks`	`addWeeks(weeks:Int) -> NSDate`
`addMonths`	`addMonths(months:Int) -> NSDate`
`addYears`	`addYears(years:Int) -> NSDate`
`isAfter`	`isAfter(date: NSDate) -> Bool`
`isBefore`	`isBefore(date: NSDate) -> Bool`
`getComponent`	`getComponent (component : NSCalendarUnit) -> Int`

Operators

Name	Signatures
`==`	`==(lhs: NSDate, rhs: NSDate) -> Bool`
`<`	`<(lhs: NSDate, rhs: NSDate) -> Bool`
`>`	`>(lhs: NSDate, rhs: NSDate) -> Bool`
`<=`	`<=(lhs: NSDate, rhs: NSDate) -> Bool`
`>=`	`>=(lhs: NSDate, rhs: NSDate) -> Bool`
`==`	`==(lhs: NSDate, rhs: NSDate) -> Bool`

Utilities

Examples in the Wiki

Class Methods

Name	Signatures
`after`	`after <P, T> (n: Int, function: P -> T) -> (P -> T?)` `func after <T> (n: Int, function: () -> T) -> (() -> T?)`
`once`	`once <P, T> (function: P -> T) -> (P -> T?)` `once <T> (call: Void -> T) -> (Void -> T?)`
`partial`	`partial <P, T> (function: (P...) -> T, _ parameters: P...) -> ((P...) -> T?)`
`bind`	`bind <P, T> (function: (P...) -> T, _ parameters: P...) -> (() -> T)`
`cached`	`cached <P, R> (function: P -> R) -> (P -> R)` `cached <P, R> (function: (P...) -> R) -> ((P...) -> R)` `cached <P, R> (function: (P...) -> R, hash: ((P...) -> P)) -> ((P...) -> R)`