38 lines
		
	
	
		
			1.5 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
		
		
			
		
	
	
			38 lines
		
	
	
		
			1.5 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
|   | --- | ||
|  | title: Any | ||
|  | localeTitle: Любые | ||
|  | --- | ||
|  | # Любые
 | ||
|  | 
 | ||
|  | Возвращает true, если есть хотя бы один элемент, который соответствует предикату. При использовании пустого предиката (только .Any () без чего-либо между скобками) он вернет true, если коллекция не пуста. | ||
|  | 
 | ||
|  | ### Подпись
 | ||
|  | 
 | ||
|  | ```csharp | ||
|  | public static bool Any<TSource>(this IEnumerable<TSource> source);  | ||
|  |  public static bool Any<TSource>(this IEnumerable<TSource> source, Func<TSource, bool> predicate);  | ||
|  | ``` | ||
|  | 
 | ||
|  | ## пример
 | ||
|  | 
 | ||
|  | ```csharp | ||
|  | var fruits = new List<Fruit>() {  | ||
|  |     new Fruit() { Id = 1, Name = "Orange",     Color = "Orange", Quantity: 3   },  | ||
|  |     new Fruit() { Id = 2, Name = "Strawberry", Color = "Red",    Quantity: 12  },  | ||
|  |     new Fruit() { Id = 3, Name = "Grape",      Color = "Purple", Quantity: 25  },  | ||
|  |     new Fruit() { Id = 4, Name = "Pineapple",  Color = "Yellow", Quantity: 1   },  | ||
|  |     new Fruit() { Id = 5, Name = "Apple",      Color = "Red",    Quantity: 5   },  | ||
|  |     new Fruit() { Id = 6, Name = "Mango",      Color = "Yellow", Quantity: 2   }  | ||
|  |  };  | ||
|  |   | ||
|  |  // Check if any Fruits have a quantity greater than 20  | ||
|  |  var anyFruitGreaterThanTwenty = fruits.Any(f => f.Quantity > 20); // true  | ||
|  |   | ||
|  |  // Any Fruit with color Green  | ||
|  |  var anyGreen = fruits.Any(f => f.Color == "Green"); // false  | ||
|  |   | ||
|  |  var hasFruits = fruits.Any(); // true  | ||
|  |   | ||
|  |  var hasYellowFruit = fruits.Any(f => f.Color == "Yellow"); // true  | ||
|  | 
 | ||
|  | ``` |