Swift Language Guide - Basic Operators

Assignment

• Assignment NOT return a value

    if x = y { <-- Error
    }
  

• Assignment with Tuple and Swap

    var (x, y) = (1, 2)
    println("(x, y) = (\(x), \(y))")
  
    (x, y) = (y, x)
    println("(x, y) = (\(x), \(y))")
  

Remainder

Support remainder (%) on FLOATING-POINT

println(8 % 3.3)

Ternary

question ? answer1 : answer2

Range

• Closed Range

    for i in 0...5 {
        println(i)      <-- print 0 ~ 5
    }
  

• Half-Closed Range

    for i in 0..<5 {
        println(i)
    }
  

P.S. Half-Closed range operator is changed. old .. is NOT USED.