The following functions are available globally.

  • Writes the textual representations of the given items into the standard output which only prints in Debug configuration.

    You can pass zero or more items to the print(_:separator:terminator:) function. The textual representation for each item is the same as that obtained by calling String(item). The following example prints a string, a closed range of integers, and a group of floating-point values to standard output:

    print("One two three four five")
    // Prints "One two three four five"
    // Prints "1...5"
    print(1.0, 2.0, 3.0, 4.0, 5.0)
    // Prints "1.0 2.0 3.0 4.0 5.0"

    To print the items separated by something other than a space, pass a string as separator.

    print(1.0, 2.0, 3.0, 4.0, 5.0, separator: " ... ")
    // Prints "1.0 ... 2.0 ... 3.0 ... 4.0 ... 5.0"

    The output from each call to print(_:separator:terminator:) includes a newline by default. To print the items without a trailing newline, pass an empty string as terminator.

    for n in 1...5 {
        print(n, terminator: "")
    // Prints "12345"



    internal func print(_ items: Any..., separator: String = " ", terminator: String = "\n")



    Zero or more items to print.


    A string to print between each item. The default is a single space (" ").


    The string to print after all items have been printed. The default is a newline ("\n").