{"id":1499,"date":"2021-09-21T08:00:00","date_gmt":"2021-09-21T11:00:00","guid":{"rendered":"https:\/\/coodesh.com\/blog\/?p=1499"},"modified":"2024-01-05T07:45:07","modified_gmt":"2024-01-05T10:45:07","slug":"o-que-e-clean-code-e-por-que-ele-e-importante","status":"publish","type":"post","link":"https:\/\/coodesh.com\/blog\/candidates\/metodologias\/o-que-e-clean-code-e-por-que-ele-e-importante\/","title":{"rendered":"O que \u00e9 Clean Code e por que ele \u00e9 importante?"},"content":{"rendered":"\n<p>Voc\u00ea sabia que a manuten\u00e7\u00e3o de um software \u00e9 t\u00e3o importante quanto a sua constru\u00e7\u00e3o? Mas para mant\u00ea-lo, \u00e9 importante adotar pr\u00e1ticas de Clean Code (C\u00f3digo Limpo) no time de desenvolvimento.&nbsp;<\/p>\n\n\n\n<p>J\u00e1 ouviu falar na regra do bom escoteiro? <strong>Deixar o acampamento mais limpo do que encontrou.<\/strong> E essa regra tamb\u00e9m deve ser seguida pelo developer que come\u00e7a a fazer a manuten\u00e7\u00e3o em um software.&nbsp;<\/p>\n\n\n\n<p>Portanto, o Clean Code \u00e9 mais do que uma metodologia, \u00e9 um conceito que \u00e9 muito adotado nas equipes de tecnologia de empresas e startups para deixar o software o mais longe poss\u00edvel dos riscos de bugs e em dia.&nbsp;<\/p>\n\n\n\n<p>Veja, portanto, neste artigo os principais princ\u00edpios, as boas pr\u00e1ticas e as vantagens de trabalhar com o foco no c\u00f3digo limpo.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Como surgiu?&nbsp;<\/h2>\n\n\n\n<p>O Clean Code e as suas t\u00e9cnicas foram apresentadas pela primeira vez no livro <strong>\u201cClean Code: a Handbook of Agile Software Craftsmanship\u201d<\/strong>. O livro foi escrito por <a href=\"https:\/\/pt.wikipedia.org\/wiki\/Robert_Cecil_Martin\" target=\"_blank\" rel=\"noreferrer noopener\">Robert Cecil Martin<\/a> (conhecido como Uncle Bob) e lan\u00e7ado em 2008.&nbsp;<\/p>\n\n\n\n<p>Martin \u00e9 conhecido na \u00e1rea de desenvolvimento desde 1970. Ele \u00e9 um dos 17 signat\u00e1rios do <a href=\"https:\/\/coodesh.com\/blog\/pessoas-candidatas\/metodologias\/metodologia-agile-guia-com-caracteristicas-beneficios-e-como-aplicar\/\" target=\"_blank\" rel=\"noreferrer noopener\">Manifesto \u00c1gil<\/a>, escrito em 2001. Seu livro sobre C\u00f3digo Limpo se tornou um best seller na \u00e1rea. Hoje ele \u00e9 consultor e escritor de livros que abordam o tema.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">7 regras do Clean Code&nbsp;<\/h2>\n\n\n\n<p>Em seu livro, Robert Cecil Martin define pelo menos 7 boas pr\u00e1ticas de uso do Clean Code para deixar o c\u00f3digo rodando perfeitamente. Veja quais s\u00e3o elas a seguir:&nbsp;<\/p>\n\n\n\n<ol class=\"wp-block-list\"><li><strong>Nomes s\u00e3o importantes<\/strong>: \u00e9 importante definir um nome claro e objetivo para o seu c\u00f3digo, seja ele uma vari\u00e1vel, uma classe, um m\u00e9todo, uma fun\u00e7\u00e3o ou um par\u00e2metro. E n\u00e3o se preocupe se o nome for muito grande, desde que ele seja necess\u00e1rio.&nbsp;<\/li><li><strong>Regra do escoteiro<\/strong>: ou seja, deixe tudo mais limpo do que encontrou. Isso quer dizer que voc\u00ea deve deixar o c\u00f3digo mais limpo do que quando come\u00e7ou a sua manuten\u00e7\u00e3o.&nbsp;<\/li><li><strong>Seja o autor do c\u00f3digo<\/strong>: entenda o c\u00f3digo como uma hist\u00f3ria a ser contada. E para ela ser perfeitamente entendida, \u00e9 importante que ela tenha fun\u00e7\u00f5es simples e pequenas, ou seja, as menores poss\u00edveis.&nbsp;<\/li><li><strong>N\u00e3o repita a si mesmo<\/strong> (Don\u2019t repeat yourself): esse conceito, abordado no livro The Pragmatic Programmer (de David Thomas e Andrew Hunt) mostra que n\u00e3o deve haver duas partes do software exercendo a mesma fun\u00e7\u00e3o.&nbsp;<\/li><li><strong>Comente somente o necess\u00e1rio<\/strong>: se for para comentar, que o developer se restrinja ao necess\u00e1rio, pois como os c\u00f3digos s\u00e3o modificados e os coment\u00e1rios n\u00e3o, pode haver problemas futuros com os coment\u00e1rios j\u00e1 realizados.&nbsp;<\/li><li><strong>Tratamento de erros<\/strong>: quando as coisas derem errado, a pessoa desenvolvedora precisa continuar garantindo que o c\u00f3digo far\u00e1 o que precisa. Nesse sentido, \u00e9 importante tratar o erro para evitar maiores transtornos.&nbsp;<\/li><li><strong>Testes limpos<\/strong>: um c\u00f3digo \u00e9 considerado limpo ap\u00f3s os testes. Por essa raz\u00e3o, os testes tamb\u00e9m devem ser limpos, ou seja, executados da melhor maneira poss\u00edvel por qualquer pessoa da equipe.&nbsp;<\/li><\/ol>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/coodesh.com\/vagas\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"256\" src=\"https:\/\/coodesh.com\/blog\/wp-content\/uploads\/2021\/07\/BANNER-CINZA-1024x256.png\" alt=\"\" class=\"wp-image-1284\" srcset=\"https:\/\/coodesh.com\/blog\/wp-content\/uploads\/2021\/07\/BANNER-CINZA-1024x256.png 1024w, https:\/\/coodesh.com\/blog\/wp-content\/uploads\/2021\/07\/BANNER-CINZA-300x75.png 300w, https:\/\/coodesh.com\/blog\/wp-content\/uploads\/2021\/07\/BANNER-CINZA-768x192.png 768w, https:\/\/coodesh.com\/blog\/wp-content\/uploads\/2021\/07\/BANNER-CINZA-1536x384.png 1536w, https:\/\/coodesh.com\/blog\/wp-content\/uploads\/2021\/07\/BANNER-CINZA-561x140.png 561w, https:\/\/coodesh.com\/blog\/wp-content\/uploads\/2021\/07\/BANNER-CINZA-1122x281.png 1122w, https:\/\/coodesh.com\/blog\/wp-content\/uploads\/2021\/07\/BANNER-CINZA-364x91.png 364w, https:\/\/coodesh.com\/blog\/wp-content\/uploads\/2021\/07\/BANNER-CINZA-728x182.png 728w, https:\/\/coodesh.com\/blog\/wp-content\/uploads\/2021\/07\/BANNER-CINZA-608x152.png 608w, https:\/\/coodesh.com\/blog\/wp-content\/uploads\/2021\/07\/BANNER-CINZA-758x190.png 758w, https:\/\/coodesh.com\/blog\/wp-content\/uploads\/2021\/07\/BANNER-CINZA-1152x288.png 1152w, https:\/\/coodesh.com\/blog\/wp-content\/uploads\/2021\/07\/BANNER-CINZA-192x48.png 192w, https:\/\/coodesh.com\/blog\/wp-content\/uploads\/2021\/07\/BANNER-CINZA-384x96.png 384w, https:\/\/coodesh.com\/blog\/wp-content\/uploads\/2021\/07\/BANNER-CINZA.png 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Dicas para um bom entendimento do c\u00f3digo&nbsp;<\/h2>\n\n\n\n<p>Al\u00e9m de acompanhar as 7 regras do Clean Code acima, tamb\u00e9m \u00e9 importante seguir algumas dicas para o bem entendimento do c\u00f3digo. Veja, portanto, mais detalhes a seguir.&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Evite condicionais negativas;<\/li><li>Evite depend\u00eancias l\u00f3gicas;<\/li><li>N\u00e3o use muitos strings;<\/li><li>Seja consistente;<\/li><li>Seja leg\u00edvel;&nbsp;<\/li><li>Facilmente test\u00e1vel;&nbsp;<\/li><li>F\u00e1cil de ser mantido;<\/li><li>Utilize vari\u00e1veis concisas.&nbsp;<\/li><\/ul>\n\n\n\n<p>De modo geral, \u00e9 bom frisar que o DEV perde mais tempo entendendo um c\u00f3digo e tentando refaz\u00ea-lo do que criando um novo. E como nas equipes \u00e1geis, o tempo deve ser otimizado a todo custo, \u00e9 importante seguir boas pr\u00e1ticas para ter um c\u00f3digo limpo e facilitar o trabalho de todos.&nbsp;<\/p>\n\n\n\n<p>E o que pode ser considerado um c\u00f3digo de f\u00e1cil manuten\u00e7\u00e3o? Geralmente, ele \u00e9 um <strong>c\u00f3digo com alta coes\u00e3o, que utiliza <\/strong><a href=\"https:\/\/coodesh.com\/blog\/dicionario\/o-que-e-solid\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>SOLID<\/strong><\/a><strong>, com t\u00e9cnicas de<\/strong><a href=\"https:\/\/coodesh.com\/blog\/pessoas-candidatas\/carreiras\/o-que-e-e-para-que-serve-design-patterns\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong> Design Patterns<\/strong><\/a><strong> e ainda com baixo acoplamento<\/strong>, entre outros detalhes.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Conclus\u00e3o&nbsp;<\/h2>\n\n\n\n<p>Enfim, um c\u00f3digo mal feito ir\u00e1 atender as necessidades, mas os problemas ser\u00e3o inevit\u00e1veis, principalmente na hora da sua manuten\u00e7\u00e3o ou atualiza\u00e7\u00e3o.&nbsp;<\/p>\n\n\n\n<p>Nesse sentido, \u00e9 fundamental seguir as regras do Clean Code para que o c\u00f3digo seja mais funcional e consuma tempo desnecessariamente da equipe.&nbsp;<\/p>\n\n\n\n<p>E, ent\u00e3o, voc\u00ea j\u00e1 conhecia as premissas desse conceito? Estude outras metodologias come\u00e7ando por <a href=\"https:\/\/coodesh.com\/blog\/pessoas-candidatas\/metodologias\/\" target=\"_blank\" rel=\"noreferrer noopener\">aqui.<\/a>&nbsp;Continue acompanhando os conte\u00fados da <a href=\"https:\/\/coodesh.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">Coodesh<\/a>. Se voc\u00ea \u00e9 <a href=\"https:\/\/coodesh.com\/desenvolvedores\" target=\"_blank\" rel=\"noreferrer noopener\">developer<\/a>, aproveite para fazer parte da nossa comunidade e conferir as <a href=\"https:\/\/coodesh.com\/vagas\" target=\"_blank\" rel=\"noreferrer noopener\">vagas para DEVs<\/a> divulgadas por empresas parceiras na nossa plataforma.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Voc\u00ea sabia que a manuten\u00e7\u00e3o de um software \u00e9 t\u00e3o importante quanto a sua constru\u00e7\u00e3o? Mas para mant\u00ea-lo, \u00e9 importante adotar pr\u00e1ticas de Clean Code (C\u00f3digo Limpo) no time de desenvolvimento.&nbsp; J\u00e1 ouviu falar na regra do bom escoteiro? Deixar o acampamento mais limpo do que encontrou. E essa regra tamb\u00e9m deve ser seguida pelo [&hellip;] <a class=\"g1-link g1-link-more\" href=\"https:\/\/coodesh.com\/blog\/candidates\/metodologias\/o-que-e-clean-code-e-por-que-ele-e-importante\/\">Ler mais<\/a><\/p>\n","protected":false},"author":1,"featured_media":1520,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[146],"tags":[257,316,206,120,414,413],"class_list":{"0":"post-1499","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-metodologias","8":"tag-codigo","9":"tag-codigo-fonte","10":"tag-desenvolvedores","11":"tag-devs","12":"tag-manutencao","13":"tag-strings"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>O que \u00e9 Clean Code e por que ele \u00e9 importante?<\/title>\n<meta name=\"description\" content=\"O Clean Code ou C\u00f3digo Limpo \u00e9 um conceito relacionado a boas pr\u00e1ticas para escrever e manter um c\u00f3digo. 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