Bits of .NET

Parsing strings usually creates hundreds of substrings on the heap. Span<T> provides a ‘view’ into memory without copying it.

ReadOnlySpan text = "2024-03-01";
var year = text.Slice(0, 4); // Zero allocation! 

The Impact: This is how the .NET team made the runtime 10x faster in recent versions. Use it for high-frequency string or array processing.