29 lines
		
	
	
		
			1019 B
		
	
	
	
		
			Markdown
		
	
	
	
	
	
		
		
			
		
	
	
			29 lines
		
	
	
		
			1019 B
		
	
	
	
		
			Markdown
		
	
	
	
	
	
| 
								 | 
							
								---
							 | 
						|||
| 
								 | 
							
								title: First Or Default
							 | 
						|||
| 
								 | 
							
								---
							 | 
						|||
| 
								 | 
							
								
							 | 
						|||
| 
								 | 
							
								# FirstOrDefault
							 | 
						|||
| 
								 | 
							
								
							 | 
						|||
| 
								 | 
							
								Returns the first element that satisfies an optional given condition. If no element is found, the ```default()``` of the object is returned
							 | 
						|||
| 
								 | 
							
								
							 | 
						|||
| 
								 | 
							
								### Signature
							 | 
						|||
| 
								 | 
							
								```csharp
							 | 
						|||
| 
								 | 
							
								Enumerable.FirstOrDefault<TSource>(IEnumerable<TSource>, Func<TSource, Boolean>)
							 | 
						|||
| 
								 | 
							
								```
							 | 
						|||
| 
								 | 
							
								
							 | 
						|||
| 
								 | 
							
								## Example
							 | 
						|||
| 
								 | 
							
								```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   }
							 | 
						|||
| 
								 | 
							
								};
							 | 
						|||
| 
								 | 
							
								
							 | 
						|||
| 
								 | 
							
								var firstFruit = fruits.FirstOrDefault(); // Orange
							 | 
						|||
| 
								 | 
							
								
							 | 
						|||
| 
								 | 
							
								var firstYellowFruit = fruits.FirstOrDefault(f => f.Color == "Green"); // null
							 | 
						|||
| 
								 | 
							
								```
							 |