The slices Package

The slices package (added to the standard library in Go 1.21) gives you a generic toolbox for the operations every Go program ends up writing by hand: sorting, searching, deleting, comparing, deduplicating. Before generics, each of those helpers had to be rewritten per element type or hidden behind interface{} casts. Now there's one type-safe, well-tuned implementation that works for any slice. This lesson walks the API in the order you'll use it on a real codebase, with an e-commerce running example.