Check this code
func demo(){
var str = [String: String]()
str["status"] = "blue"
str["asd"] = nil
guard let var2 = str["asd"], let var1 = str["status"]
else
{
print("asdsfddffgdfgdfga")
return
}
print("asdasdasd")
}
Guard will check one by one condition. If the first is true then it will check the next. Otherwise, it will execute the else part.