func checkAge() { var age: Int? = 22 guard let myAge = age else { print("Age is undefined") return } print("My age is \(myAge)")
}
checkAge()

var i = 2
while (i <= 10) { // guard condition to check the even number guard i % 2 == 0 else { i = i + 1 continue } print(i) i = i + 1
}

func testFunction() {	let someValue:Int? = 5	guard let temp = someValue else {	return	}	print("It has some value \(temp)")
}
testFunction()

guard expression else { // statements // control statement: return, break, continue or throw.
}