Swift has variadic parameters. This allows you to put multiple things into a function without having to use an array. It is notated with the range syntax “…”
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| //EXAMPLE FROM https://www.swiftbysundell.com/tips/the-power-of-variadic-parameters/
// When using a variadic parameter, any number of arguments can
// be passed, and the compiler will automatically organize them
// into an array.
func send(_ message: Message, attaching attachments: Attachment...) {
...
}
// Passing no variadic arguments:
send(message)
// Passing either a single, or multiple variadic arguments:
send(message, attaching: image)
send(message, attaching: image, document)
|
You always have the option of using an array if you want, like:
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| send(message, attaching: […])
|
Originally published 04/16/2021 https://pittcsc.org/, republished 09/08/2022.