• Instance methods
  • Iteration
    • times
    • upTo
    • downTo
  • Math
    • isEven
    • isOdd
    • clamp
    • abs
    • gcd
    • lcm
    • isIn
  • Conversion
    • digits
• Class methods
  • random

#Instance methods ##Iteration

• times <T> (function: () -> T)
• times (function: () -> ())

Iterates function , self times.

• times <T> (function: (Int) -> T)

Iterates function , with an Int index argument, self times.

5.times { println("Hi") } /* Prints → */ // → Hi // → Hi // → Hi // → Hi // → Hi

• upTo (limit: Int, function: (Int) -> ())

Iterates function, passing in integer values from self up to and including limit.

5.upTo(7, { println($0) }) /* Prints → */ // → 5 // → 6 // → 7

• downTo (limit: Int, function: (Int) -> ())

Iterates function, passing in integer values from self down to and including limit.

7.downTo(5, { println($0) }) /* Prints → */ // → 7 // → 6 // → 5

##Math

• isEven () -> Bool

Returns true if self is even.

4.isEven() // → true

• isOdd () -> Bool

Returns true if self is odd.

3.isOdd() // → true

• clamp (range: Range<Int>) -> Int
• clamp (min: Int, max: Int) -> Int

Computes the value of self clamped to a range defined by range (or min...max).

5.clamp(0...4) // → 4 1.clamp(2...4) // → 2

• abs () -> Int

Computes the absolute value of self.

(-2).abs() // → 2 1.abs() // → 1

• gcd (n: Int) -> Int

Computes the greatest common divisor of self and n.

6.gcd(3) // → 3

• lcm (n: Int) -> Int

Computes the least common multiple of self and n.

3.lcm(4) // → 12

• isIn (range: Range<Int>, strict: Bool = false) -> Bool

If strict is true checks that range.startIndex < self < range.endIndex - 1, otherwise, range.startIndex <= self <= range.endIndex - 1.

5.isIn(4..10) // → true

##Conversion

• digits () -> Array<Int>

Returns an array of integers where each element is a digit of self.

512.digits() // → [5, 1, 2]

#Class methods

• random(min: Int = 0, max: Int) -> Int

Returns a random integer between min and max (inclusive).

Int.random(min: 5, max: 10) // → 6