IEnumerable , IEnumerator vs foreach, when to use what
15154
Can anyone explain IEnumerable and IEnumerator to me?
8057
In .NET, which loop runs faster, 'for' or 'foreach'?
9686
Casting IEnumerable to List
33430
What's the difference between anonymous methods (C# 2.0) and lambda expressions (C# 3.0)?
36346
When to use generic methods and when to use wild-card?
62026
What's the difference between IQueryable and IEnumerable
59
What is the C# Using block and why should I use it?
106509
Why do C# multidimensional arrays not implement IEnumerable?
108538
IList vs IEnumerable for Collections on Entities
3001
Array versus List: When to use which?
113191
How to get the index of an element in an IEnumerable?
24464
Lambda expression vs method reference
8045
Python List vs. Array - when to use?
8813
foreach vs someList.ForEach(){}
118356
What does [].forEach.call() do in JavaScript?
58522
Count the items from a IEnumerable without iterating?
157812
what is the [count=\i] in \foreach for?