{"publication":{"id":"5f456da96d1d6b1abbc3e80b","url":"https://maximilianocontieri.com","canonicalURL":"https://maximilianocontieri.com","title":"Maximiliano Contieri - Software Design","displayTitle":"","descriptionSEO":"I am Maximiliano Contieri\nI've been working as a software engineer and teaching for about 25 years.\nI write about software design, refactoring, test driven development, clean code and code smells.","username":"mcsee","about":{"html":"

Learn something new every day. 💻\nCS software engineer\n👷working\n👨🏽‍🏫teaching\n✍🏾writing\n🎨Software design\n🏢SOLID\n🌉TDD\n👴Legacy

Write me at info(at)maximilianocontieri.com

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Technical Opinions are my own. I don't have the revealed truth.

Software Design is a creative activity. These are hints and not rigid rules.

I write on BackEnd Business Systems and OOP Design. My advice/experience might not suit other systems.

You can write me at info(at)maximilianocontieri.com

https://maximilianocontieri.com/i-wrote-more-than-90-articles-on-2021-here-is-what-i-learned

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Two equal names","brief":"TL;DR: Turn on Strict Checks\n\nProblems\n\nUnexpected errors\n\nAmbiguity\n\nThe Least Surprise Principle violation\n\nPortability\n\n\nSolutions\n\nEnable strict mode\n\nUse role-naming arguments\n\n\nContext\nMost compilers forbid duplicate parameters since they are a...","readTimeInMinutes":2,"views":24,"author":{"id":"5f456a23b9870f18f59a8793","username":"mcsee","name":"Maxi Contieri⭐⭐⭐","profilePicture":"https://cdn.hashnode.com/res/hashnode/image/upload/v1646504605596/GuDBH0R3L.jpg","followersCount":1396,"__typename":"User"},"coverImage":{"url":"https://cdn.hashnode.com/res/hashnode/image/stock/unsplash/bbjmFMdWYfw/upload/84e248c44d2f2f2f07b2f6a4b9d43b9a.jpeg","isPortrait":false,"__typename":"PostCoverImage"},"__typename":"Post"},"cursor":"NjQ3MGZmMmE5NGNkYWFmOGY4ZGFiOGI3XzIwMjMtMDUtMjZUMTg6NDk6MTQuNzEyWg==","__typename":"PostEdge"},{"node":{"id":"6466976952947265b3955105","title":"Code Smell 213 - Hoisting","slug":"code-smell-213-hoisting","publishDate":"2023-05-18T21:23:53.529Z","cuid":"clhtn2y48000009jy9cro346e","url":"https://maximilianocontieri.com/code-smell-213-hoisting","subtitle":null,"brief":"You can prevent undefined\n\nTL;DR: Declare your variables and look after the scope\n\nProblems\n\nReadability\n\nLeast Surprise Principle violation\n\nVariable Shadowing \n\n\nSolutions\n\nBe explicit on declarations\n\nUse 'const' declaration when possible.\n\nDeclar...","readTimeInMinutes":2,"views":81,"author":{"id":"5f456a23b9870f18f59a8793","username":"mcsee","name":"Maxi Contieri⭐⭐⭐","profilePicture":"https://cdn.hashnode.com/res/hashnode/image/upload/v1646504605596/GuDBH0R3L.jpg","followersCount":1396,"__typename":"User"},"coverImage":{"url":"https://cdn.hashnode.com/res/hashnode/image/stock/unsplash/iiRQxPCDQ_Y/upload/1bae46e86a3f02659a14d14c452fd655.jpeg","isPortrait":false,"__typename":"PostCoverImage"},"__typename":"Post"},"cursor":"NjQ2Njk3Njk1Mjk0NzI2NWIzOTU1MTA1XzIwMjMtMDUtMThUMjE6MjM6NTMuNTI5Wg==","__typename":"PostEdge"},{"node":{"id":"645f8ac33159e7dc504eba5f","title":"Code Smell 212 - Elvis Operator","slug":"code-smell-212-elvis-operator","publishDate":"2023-05-13T13:04:03.363Z","cuid":"clhm00w83001809ia47rmhtht","url":"https://maximilianocontieri.com/code-smell-212-elvis-operator","subtitle":"","brief":"Your code is not safer using this operator\n\nTL;DR: Don't propagate nulls.\n\nProblems\n\nNULL propagation\n\nHarder to read code\n\nHacky code\n\n\nSolutions\n\nRemove the nulls. \n\nIf you can't remove it, deal explicitly with them.\n\n\nContext\nThe Elvis operator is...","readTimeInMinutes":2,"views":125,"author":{"id":"5f456a23b9870f18f59a8793","username":"mcsee","name":"Maxi Contieri⭐⭐⭐","profilePicture":"https://cdn.hashnode.com/res/hashnode/image/upload/v1646504605596/GuDBH0R3L.jpg","followersCount":1396,"__typename":"User"},"coverImage":{"url":"https://cdn.hashnode.com/res/hashnode/image/stock/unsplash/INLHpZKShao/upload/6775d09c2292c77105a6aca8d0ce774b.jpeg","isPortrait":false,"__typename":"PostCoverImage"},"__typename":"Post"},"cursor":"NjQ1ZjhhYzMzMTU5ZTdkYzUwNGViYTVmXzIwMjMtMDUtMTNUMTM6MDQ6MDMuMzYzWg==","__typename":"PostEdge"},{"node":{"id":"64565c690415a91a0ae49bd4","title":"Code Smell 211 - Tab over Spaces","slug":"code-smell-211-tab-over-spaces","publishDate":"2023-05-06T13:55:53.374Z","cuid":"clhc1sl9a000209l97chl7pbv","url":"https://maximilianocontieri.com/code-smell-211-tab-over-spaces","subtitle":"Tabs or spaces, are equivalent?","brief":"TL;DR: Don't use Tabs. It is not a \"personal style decision\"\n\nProblems\n\nReadability\n\nCompilation errors in some languages\n\nMixed Standards\n\n\nSolutions\n\nUse spaces. Always.\n\nUse automatic tools to prevent tabs in the code.\n\n\nContext\nDevelopers might s...","readTimeInMinutes":2,"views":107,"author":{"id":"5f456a23b9870f18f59a8793","username":"mcsee","name":"Maxi Contieri⭐⭐⭐","profilePicture":"https://cdn.hashnode.com/res/hashnode/image/upload/v1646504605596/GuDBH0R3L.jpg","followersCount":1396,"__typename":"User"},"coverImage":{"url":"https://cdn.hashnode.com/res/hashnode/image/stock/unsplash/6UqGD_bHk_Q/upload/268bfaf4b96be6be6813600ec463f394.jpeg","isPortrait":false,"__typename":"PostCoverImage"},"__typename":"Post"},"cursor":"NjQ1NjVjNjkwNDE1YTkxYTBhZTQ5YmQ0XzIwMjMtMDUtMDZUMTM6NTU6NTMuMzc0Wg==","__typename":"PostEdge"},{"node":{"id":"644fefe1f15388bc324a2a50","title":"Code Smell 210 - Dynamic Properties","slug":"code-smell-210-dynamic-properties","publishDate":"2023-05-01T16:59:13.352Z","cuid":"clh5353k8000h09l750wx8bwz","url":"https://maximilianocontieri.com/code-smell-210-dynamic-properties","subtitle":"Laziness and magic bring defects","brief":"TL;DR: Be explicit with your attributes\n\nProblems\n\nReadability\n\nScope definition\n\nUnnoticed typos\n\n\nSolutions\n\nFavor languages forbidding dynamic properties\n\nContext\nDynamic properties break type safety since it's easy to introduce typos or use the w...","readTimeInMinutes":2,"views":64,"author":{"id":"5f456a23b9870f18f59a8793","username":"mcsee","name":"Maxi Contieri⭐⭐⭐","profilePicture":"https://cdn.hashnode.com/res/hashnode/image/upload/v1646504605596/GuDBH0R3L.jpg","followersCount":1396,"__typename":"User"},"coverImage":{"url":"https://cdn.hashnode.com/res/hashnode/image/stock/unsplash/0w-uTa0Xz7w/upload/3680fcf1910eb430f6c02564cb333130.jpeg","isPortrait":false,"__typename":"PostCoverImage"},"__typename":"Post"},"cursor":"NjQ0ZmVmZTFmMTUzODhiYzMyNGEyYTUwXzIwMjMtMDUtMDFUMTY6NTk6MTMuMzUyWg==","__typename":"PostEdge"},{"node":{"id":"644b33c1ed3152418337351d","title":"Code Smell 209 - Side Effects","slug":"code-smell-209-side-effects","publishDate":"2023-04-28T02:47:29.129Z","cuid":"clgzye7ah000709me92df4qc0","url":"https://maximilianocontieri.com/code-smell-209-side-effects","subtitle":"Global scope is easy or a nightmare, or both","brief":"TL;DR: Avoid side effects on your code.\n\nProblems\n\nCoupling\n\nLeast Astonishment Principle violation\n\n\nSolutions\n\nFavor referential transparency\n\nContext\nReferential transparency always produces the same output for a given input and does not have any ...","readTimeInMinutes":2,"views":70,"author":{"id":"5f456a23b9870f18f59a8793","username":"mcsee","name":"Maxi Contieri⭐⭐⭐","profilePicture":"https://cdn.hashnode.com/res/hashnode/image/upload/v1646504605596/GuDBH0R3L.jpg","followersCount":1396,"__typename":"User"},"coverImage":{"url":"https://cdn.hashnode.com/res/hashnode/image/stock/unsplash/91LGCVN5SAI/upload/08387356bc32160d3659e533fde0fd9a.jpeg","isPortrait":false,"__typename":"PostCoverImage"},"__typename":"Post"},"cursor":"NjQ0YjMzYzFlZDMxNTI0MTgzMzczNTFkXzIwMjMtMDQtMjhUMDI6NDc6MjkuMTI5Wg==","__typename":"PostEdge"}],"pageInfo":{"endCursor":"NjQ0YjMzYzFlZDMxNTI0MTgzMzczNTFkXzIwMjMtMDQtMjhUMDI6NDc6MjkuMTI5Wg==","hasNextPage":true,"__typename":"PageInfo"},"__typename":"PostConnection"},"__typename":"Series"}}}

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