{"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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Input only data\n\nApply sandboxing or isolation\n\n\nContext\nDeserializing objects from an untrusted source is indeed a security-s...","readTimeInMinutes":2,"views":39,"author":{"id":"5f456a23b9870f18f59a8793","username":"mcsee","name":"Maxi Contieri⭐⭐⭐","profilePicture":"https://cdn.hashnode.com/res/hashnode/image/upload/v1646504605596/GuDBH0R3L.jpg","followersCount":1399,"__typename":"User"},"coverImage":{"url":"https://cdn.hashnode.com/res/hashnode/image/stock/unsplash/em5w9_xj3uU/upload/f22121e624bb67b5f123c55c0d27014a.jpeg","isPortrait":false,"__typename":"PostCoverImage"},"__typename":"Post"},"cursor":"NjQ3N2ViZmRhN2RjOWRiZjkwZTAxNDU1XzIwMjMtMDYtMDFUMDA6NTM6MTcuMzkxWg==","__typename":"PostEdge"},{"node":{"id":"6470ff2a94cdaaf8f8dab8b7","title":"Code Smell 214 - Duplicate Parameter Names","slug":"code-smell-214-duplicate-parameter-names","publishDate":"2023-05-26T18:49:14.712Z","cuid":"cli4x2vvb000009jy823r9wb6","url":"https://maximilianocontieri.com/code-smell-214-duplicate-parameter-names","subtitle":"Two arguments of the same type. 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":37,"author":{"id":"5f456a23b9870f18f59a8793","username":"mcsee","name":"Maxi Contieri⭐⭐⭐","profilePicture":"https://cdn.hashnode.com/res/hashnode/image/upload/v1646504605596/GuDBH0R3L.jpg","followersCount":1399,"__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":90,"author":{"id":"5f456a23b9870f18f59a8793","username":"mcsee","name":"Maxi Contieri⭐⭐⭐","profilePicture":"https://cdn.hashnode.com/res/hashnode/image/upload/v1646504605596/GuDBH0R3L.jpg","followersCount":1399,"__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":139,"author":{"id":"5f456a23b9870f18f59a8793","username":"mcsee","name":"Maxi Contieri⭐⭐⭐","profilePicture":"https://cdn.hashnode.com/res/hashnode/image/upload/v1646504605596/GuDBH0R3L.jpg","followersCount":1399,"__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. 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Always.\n\nUse automatic tools to prevent tabs in the code.\n\n\nContext\nDevelopers might s...","readTimeInMinutes":2,"views":120,"author":{"id":"5f456a23b9870f18f59a8793","username":"mcsee","name":"Maxi Contieri⭐⭐⭐","profilePicture":"https://cdn.hashnode.com/res/hashnode/image/upload/v1646504605596/GuDBH0R3L.jpg","followersCount":1399,"__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"}],"pageInfo":{"endCursor":"NjQ1NjVjNjkwNDE1YTkxYTBhZTQ5YmQ0XzIwMjMtMDUtMDZUMTM6NTU6NTMuMzc0Wg==","hasNextPage":true,"__typename":"PageInfo"},"__typename":"PostConnection"},"__typename":"Series"}}}

Zeeshan Majeed

I’ve Been Programming for Almost 10 Years, But I Failed a Machine Learning Course