DRY (Don’t Repeat Yourself)

DRY, or Don’t Repeat Yourself, is a principle in designing software that encourages minimizing duplicate code or information. Instead of copying and pasting the same instructions or data multiple times, developers create a single, reusable source of that content. This approach makes programs easier to maintain, since updates only need to be made in one place, reducing errors and saving time. Essentially, it promotes efficiency and clarity by ensuring that each piece of knowledge or logic is represented only once within the system, leading to cleaner, more manageable code.