spaghetti code

      Spaghetti code GudangMovies21 Rebahinxxi LK21

      Spaghetti code is a pejorative phrase for difficult-to-maintain and unstructured computer source code. Code being developed with poor structure can be due to any of several factors, such as volatile project requirements, lack of programming style rules, and software engineers with insufficient ability or experience.


      Meaning


      Code that overuses GOTO statements rather than structured programming constructs, resulting in convoluted and unmaintainable programs, is often called spaghetti code.
      Such code has a complex and tangled control structure, resulting in a program flow that is conceptually like a bowl of spaghetti, twisted and tangled.
      In a 1980 publication by the United States National Bureau of Standards, the phrase spaghetti program was used to describe older programs having "fragmented and scattered files".
      Spaghetti code can also describe an anti-pattern in which object-oriented code is written in a procedural style, such as by creating classes whose methods are overly long and messy, or forsaking object-oriented concepts like polymorphism. The presence of this form of spaghetti code can significantly reduce the comprehensibility of a system.


      History


      It is not clear when the phrase spaghetti code came into common usage; however, several references appeared in 1977 including Macaroni is Better Than Spaghetti by Guy Steele. In the 1978 book A primer on disciplined programming using PL/I, PL/CS, and PL/CT, Richard Conway described programs that "have the same clean logical structure as a plate of spaghetti", a phrase repeated in the 1979 book An Introduction to Programming he co-authored with David Gries. In the 1988 paper A spiral model of software development and enhancement, the term is used to describe the older practice of the code and fix model, which lacked planning and eventually led to the development of the waterfall model. In the 1979 book Structured programming for the COBOL programmer, author Paul Noll uses the phrases spaghetti code and rat's nest as synonyms to describe poorly structured source code.
      In the Ada – Europe '93 conference, Ada was described as forcing the programmer to "produce understandable, instead of spaghetti code", because of its restrictive exception propagation mechanism.
      In a 1981 computer languages spoof in The Michigan Technic titled "BASICally speaking...FORTRAN bytes!!", the author described FORTRAN stating that "it consists entirely of spaghetti code".
      Richard Hamming described in his lectures the etymology of the term in the context of early programming in binary codes:

      If, in fixing up an error, you wanted to insert some omitted instructions then you took the immediately preceding instruction and replaced it by a transfer to some empty space. There you put in the instruction you just wrote over, added the instructions you wanted to insert, and then followed by a transfer back to the main program. Thus the program soon became a sequence of jumps of the control to strange places. When, as almost always happens, there were errors in the corrections you then used the same trick again, using some other available space. As a result the control path of the program through storage soon took on the appearance of a can of spaghetti. Why not simply insert them in the run of instructions? Because then you would have to go over the entire program and change all the addresses which referred to any of the moved instructions! Anything but that!


      Related phrases




      = Ravioli code

      =
      Ravioli code is a term specific to object-oriented programming. It describes code that comprises well-structured classes that are easy to understand in isolation, but difficult to understand as a whole.


      = Lasagna code

      =

      Lasagna code refers to code whose layers are so complicated and intertwined that making a change in one layer would necessitate changes in all other layers.


      Examples


      Here follows what would be considered a trivial example of spaghetti code in BASIC. The program prints each of the numbers 1 to 100 to the screen along with its square. Indentation is not used to differentiate the various actions performed by the code, and the program's GOTO statements create a reliance on line numbers. The flow of execution from one area to another is harder to predict. Real-world occurrences of spaghetti code are more complex and can add greatly to a program's maintenance costs.

      Here is the same code written in a structured programming style:

      The program jumps from one area to another, but this jumping is formal and more easily predictable, because for loops and functions provide flow control whereas the goto statement encourages arbitrary flow control. Though this example is small, real world programs are composed of many lines of code and are difficult to maintain when written in a spaghetti code fashion.
      Here is another example of Spaghetti code with embedded GOTO statements.


      See also



      Big ball of mud, a piece of software with no perceivable architecture
      International Obfuscated C Code Contest, a competition to produce pleasingly obscure C code
      Technical debt
      The Elements of Programming Style


      References




      External links


      Go To Statement Considered Harmful. The classic repudiation of spaghetti code by Edsger Dijkstra
      We don't know where to GOTO if we don't know where we've COME FROM by R. Lawrence Clark from DATAMATION, December, 1973 Archived 2018-07-16 at the Wayback Machine
      Refactoring Java spaghetti code into Java bento code separating out a bowl full of code from one class into seven classes
      Objects and Frameworks – Taking a Step Back by Brian Rinaldi
      Programming Pasta - Spaghetti, Lasagna, Ravioli and Macaroni Code Archived 2023-01-21 at the Wayback Machine
      Pasta Theory of Programming

    Kata Kunci Pencarian: spaghetti code

    spaghetti codespaghetti code adalahspaghetti code lovespaghetti codesspaghetti code in gamesspaghetti code diagramspaghetti code meaningspaghetti code examplespaghetti code meansspaghetti code love full movie Search Results

    spaghetti code

    Daftar Isi

    terminology - What is spaghetti code? - Stack Overflow

    Dec 31, 2015 · Spaghetti code: Originating in the early 60's in Italy as an alternate recipe for certain pasta dishes, spaghetti code was cooked up by one restaurant entrepreneur who attempted to automate the creation of a fool-proof entree.

    What are the characteristics of spaghetti code? - Stack Overflow

    Spaghetti code can be functionally correct and performative. It's a problem because it's hard to understand, so we can't be sure it is bug free and the lack of structure makes it difficult to troubleshoot. For similar reasons spaghetti code is brittle and difficult to change; the risk of introducing a bug is high.

    Trying to avoid "spaghetti code", why is multiple if-else bad?

    Aug 30, 2013 · How would you name a method that does print in one case and do other things in others case: printPerhaps? .. tend to make your method having a high cohesion is one of the best way to have a clean code. In this case, splitting the method.

    coding style - Definition of spaghetti php? - Stack Overflow

    Spaghetti code is a pejorative term for source code which has a complex and tangled control structure, especially one using many GOTOs, exceptions, threads, or other "unstructured" branching constructs. It is named such because program flow tends to look like a bowl of spaghetti, i.e. twisted and tangled.

    Avoiding spaghetti code while writing small functions

    Aug 22, 2013 · My understanding of "Spaghetti Code" is a code base that jumps from one block of code to another without an logical and legible purpose. The most common offender seems to be the GOTO statement. I'm currently reading/referencing the function chapter of Clean Code: A Handbook of Agile Software Craftsmanship.

    O que é código spaghetti? - Stack Overflow em Português

    Sep 4, 2014 · O código Spaghetti se repete ritmicamente, mas é pretensioso e faz mau uso do tempo. O código Zen facilita e abraça o crescimento. O código Spaghetti torna a manutenção difícil, custosa e lenta. O código Zen é como a água, se adaptando a novas formas sem esforço. O código Spaghetti, quando corrigido em um ponto, cria bugs em outros.

    How can I determine or tell if a set of classes is "spaghetti code"?

    Oct 22, 2012 · I always avoid the problem of spaghetti code by attempting to reduce the amount of dependencies between the classes. When doing so, yes, the Dependency Graph indeed becomes neater. And when I make changes to certain part, because the classes have little dependency between each other, I don't have to worry about messing up the other classes.

    Ravioli code - why an anti-pattern? - Stack Overflow

    Spaghetti code is a pejorative term for source code. Ravioli: Ravioli code is a type of computer program structure, characterized by a number of small and (ideally) loosely-coupled software components. The term is in comparison with spaghetti code, comparing program structure to pasta; It's comparing them. It isn't saying it's an anti-pattern.

    How to explain the advantages of refactoring spaghetti code?

    Feb 18, 2016 · I have been tasked to refactor a tool full of duplicated code, coupled modules (even the author of the code is afraid of changing anything since he doesn't know what it may impact) and an overly complex database (250+ queries that could be replaced with about 20).

    ASP.NET MVC reminds me of old Classic ASP spaghetti code

    Jun 1, 2011 · In classic ASP, you didn't have a choice to move business logic out of the UI layer. In ASP.Net MVC, the "spaghetti" code is isolated the UI layer, the View; 90% of your logic will be in the "M" and "C" layers, which are regular, non-spaghetti C# classes. The View is meant to be "dumb". Nothing critical in there from a business logic perspective.