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"Don't repeat yourself" (DRY), also known as "duplication is evil", is a principle of software development aimed at reducing repetition of information which is likely to change, replacing it with abstractions that are less likely to change, or using data normalization which avoids redundancy in the first place.
For emphasis: in לאט לאט le'at le'at, where the adverb לאט "slowly" is duplicated to mean "very slowly". In the slangism גבר גבר gever gever, the noun גבר "man" is duplicated to mean a "very manly man". To mean "one by one": יום יום yom yom is based on יום "day", and means "every day, day by day".
In computer programming, duplicate code is a sequence of source code that occurs more than once, either within a program or across different programs owned or maintained by the same entity. Duplicate code is generally considered undesirable for a number of reasons. [ 1 ]
In engineering and systems theory, redundancy is the intentional duplication of critical components or functions of a system with the goal of increasing reliability of the system, usually in the form of a backup or fail-safe, or to improve actual system performance, such as in the case of GNSS receivers, or multi-threaded computer processing.
In computing, data deduplication is a technique for eliminating duplicate copies of repeating data. Successful implementation of the technique can improve storage utilization, which may in turn lower capital expenditure by reducing the overall amount of storage media required to meet storage capacity needs.
Folds can be regarded as consistently replacing the structural components of a data structure with functions and values. Lists, for example, are built up in many functional languages from two primitives: any list is either an empty list, commonly called nil ([]), or is constructed by prefixing an element in front of another list, creating what is called a cons node ( Cons(X1,Cons(X2,Cons ...
Elon Musk took aim at the U.S. Agency for International Development this weekend, gaining access to top secret documents, though at first his DOGE was denied the access.
R – Yes, tailcall() function introduced in R.4.4.0 [38] Racket – Yes [39] Ruby – Yes, but disabled by default [40] Rust – tail-call optimization may be done in limited circumstances, but is not guaranteed [41] Scala – Tail-recursive functions are automatically optimized by the compiler.