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
|
||
|
|
||
|
```
|