Demo entry 6345730

Test

   

Submitted by anonymous on Feb 05, 2017 at 12:30
Language: Swift. Code size: 318 Bytes.

	class Person {
	var delegate:PersonDelegate?

	// you can use the var delegate to call any function that is provided in protocol
	func makeCall() {
		
		// First Method:
		delegate?.callTo(Carl)

		// Second Method:
		guard let d = delegate else { return } // if nil, return

		d.callTo(Carl)
}
	}

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