Code Templates Are Not Copy-Paste Recipes
Software design patterns are not literal code blocks you copy into your project. Instead, they are high-level blueprints that provide a shared strategy for solving complex logic puzzles across any programming language.
Think of these patterns like architectural styles rather than specific floor plans. A master builder uses the same concept for a balcony whether they are working with wood, steel, or brick. By using these established patterns, developers avoid reinventing the wheel when facing common hurdles. It is essentially a professional language that lets coders explain deep design decisions in just a few words.
Source: Software design pattern