Bits of .NET

Array slicing with loops or LINQ is verbose. C# 8+ has Python-like syntax.

Old Way:

var numbers = new[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };

// Get last element
var last = numbers[numbers.Length - 1];  // 9

// Get last 3 elements
var lastThree = numbers.Skip(numbers.Length - 3).ToArray();  // [7,8,9]

New Way:

var numbers = new[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };

// Get last element
var last = numbers[^1];  // 9

// Get last 3 elements
var lastThree = numbers[^3..];  // [7, 8, 9]

// Get first 3 elements
var firstThree = numbers[..3];  // [0, 1, 2]

// Get middle elements (index 3 to 6)
var middle = numbers[3..7];  // [3, 4, 5, 6]

// Everything except first and last
var middle2 = numbers[1..^1];  // [1, 2, 3, 4, 5, 6, 7, 8]

Much cleaner and more readable!