ป้องกันคำแถลงอยู่ในรี

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รียามแถลงการณ์

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
}
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รียามแถลงการณ์

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

testFunction()
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รีบไวยากรณ์ของผู้คุมแถลงการณ์

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

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