ExSwift

Set of Swift extensions for standard types and classes.

Installation

Because of Xcode errors it's not possible to integrate this project with Cocoapods or as Embedded Framework. Read more at Dev Forum

Use submodule and copy source code

1. Add ExSwift as a submodule
2. Open the ExSwift project folder, and drag ExSwift sub folder with source code into the file navigator of your Xcode project. Make sure you select add to target
3. Use it

components.takeFirst() { $0.completed }

Contents

• ExSwift extensions

  • Array
    • Instance Methods
    • Class Methods
    • Operators
  • Int
    • Properties
    • Instance Methods
    • Class Methods
  • Float
    • Instance Methods
    • Class Methods
  • String
    • Properties
    • Instance Methods
    • Class Methods
    • Operators
  • Range
    • Instance Methods
    • Class Methods
    • Operators
  • Dictionary
    • Instance Methods
    • Operators
  • NSArray
    • Instance Methods
  • SequenceOf
    • Instance Methods
  • Double
    • Instance Methods
    • Class Methods
  • NSDate
    • Instance Methods
    • Operators

• 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
|	| <T: Equatable> (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
NSTimeIntervalyears
NSTimeIntervalyear
NSTimeIntervaldays
NSTimeIntervalday
NSTimeIntervalhours
NSTimeIntervalhour
NSTimeIntervalminutes
NSTimeIntervalminute
NSTimeIntervalseconds
NSTimeIntervalsecond

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
|	| <K, V: Equatable> (first: Dictionary<K, V>, second: Dictionary<K, V>) -> Dictionary<K, V>	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)

Operators

Name	Signatures
<=>	<=> <T: Comparable>(lhs: T, rhs: T) -> Int

To Do

• Wiki
• Xcode project for both iOS & OS X
• Review code comments
• Example project
• Installation instructions
• Benchmark