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I'm translating some Clojure code to Javascript for my job for transparency for the UI team and I realized why I prefer Clojure for Javascript. Here's the problem:

Select only unique objects from a list

Javascript:

const myDistinctArray = [\n  ...new Set(myObjArray.map(JSON.stringify)),\n].map(JSON.parse);

// This one presumes unique \"id\" === unique object \nlet uniqueObjArray = [\n  ...new Map(\n    objArray.map((item) => [item[\"id\"], item])\n  ).values(),\n];

Clojure

(distinct my-object-list) // that's it

Why does the Clojure one work?

Clojure promotes immutability by default, and this includes maps. So maps are compared directly by value and not by reference or identity.

Conclusion

The beautiful thing about Clojure is how expressive the language is and how much you can say with very few lines of code.

","titlePublished":"The One Thing That Made Me Choose Clojure Over Javascript - How Simplicity Wins","descriptionPublished":"The advantage Clojure(Script) has over Javascript is expressiveness and simplicity","bodyPublished":"

I'm translating some Clojure code to Javascript for my job for transparency for the UI team and I realized why I prefer Clojure for Javascript. Here's the problem:

Select only unique objects from a list

Javascript:

const myDistinctArray = [\n  ...new Set(myObjArray.map(JSON.stringify)),\n].map(JSON.parse);

// This one presumes unique \"id\" === unique object \nlet uniqueObjArray = [\n  ...new Map(\n    objArray.map((item) => [item[\"id\"], item])\n  ).values(),\n];

Clojure

(distinct my-object-list) // that's it

Why does the Clojure one work?

Clojure promotes immutability by default, and this includes maps. So maps are compared directly by value and not by reference or identity.

Conclusion

The beautiful thing about Clojure is how expressive the language is and how much you can say with very few lines of code.

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I'm translating some Clojure code to Javascript for my job for transparency for the UI team and I realized why I prefer Clojure for Javascript. Here's the problem:

Select only unique objects from a list

Javascript:

const myDistinctArray = [\n  ...new Set(myObjArray.map(JSON.stringify)),\n].map(JSON.parse);

// This one presumes unique \"id\" === unique object \nlet uniqueObjArray = [\n  ...new Map(\n    objArray.map((item) => [item[\"id\"], item])\n  ).values(),\n];

Clojure

(distinct my-object-list) // that's it

Why does the Clojure one work?

Clojure promotes immutability by default, and this includes maps. So maps are compared directly by value and not by reference or identity.

Conclusion

The beautiful thing about Clojure is how expressive the language is and how much you can say with very few lines of code.

I'm translating some Clojure code to Javascript for my job for transparency for the UI team and I realized why I prefer Clojure for Javascript. Here's the problem:

Select only unique objects from a list

Javascript:

const myDistinctArray = [\n  ...new Set(myObjArray.map(JSON.stringify)),\n].map(JSON.parse);

// This one presumes unique \"id\" === unique object \nlet uniqueObjArray = [\n  ...new Map(\n    objArray.map((item) => [item[\"id\"], item])\n  ).values(),\n];

Clojure

(distinct my-object-list) // that's it

Why does the Clojure one work?

Clojure promotes immutability by default, and this includes maps. So maps are compared directly by value and not by reference or identity.

Conclusion

The beautiful thing about Clojure is how expressive the language is and how much you can say with very few lines of code.

","pinned":false,"atomicEssayURL":null,"threadURL":null,"linkedinURL":null,"mediumURL":null,"collectionId":"gv5dombt2kto4atukkfkbugb","scheduledAt":null,"posthookId":null,"xPostHookId":null,"linkedInPostHookId":null,"mediumPostHookId":null,"userId":"TRl7Gksok1c41hHgWEOz73plb452","hideOnSocialBlog":null,"images":[]},"user":{"id":"TRl7Gksok1c41hHgWEOz73plb452","image":"https://firebasestorage.googleapis.com/v0/b/typeshare-2027d.appspot.com/o/TRl7Gksok1c41hHgWEOz73plb452%2Fprofile-photo?alt=media&token=245fd834-31bd-4749-95ee-3b8fb1139508","username":"ovistoica","name":"Ovidiu Stoica","isPro":false,"blogMeta":{"id":"mh0hecjpr7456zj1dry9j7wp","coverPhoto":"","bio":"I write about SaaS, web development, freelancing, and marketing for developers","userId":"TRl7Gksok1c41hHgWEOz73plb452","blogLinks":[]},"createdAt":"January 2022"}}]}],["$","div",null,{"className":"relative col-span-4 px-4 md:px-0","children":["$","div",null,{"className":"sticky top-24 flex flex-col gap-8","children":[["$","div",null,{"className":"flex w-full flex-col ","children":[["$","h1",null,{"className":"text-lg font-semibold tracking-tight2","children":"The One Thing That Made Me Choose Clojure Over Javascript - How Simplicity Wins"}],["$","div",null,{"className":"flex flex-row items-center justify-start gap-2","children":[["$","p",null,{"className":"text-sm opacity-50","children":"April 30, 2022"}],false]}],["$","p",null,{"className":"mt-2 text-sm tracking-tight2 opacity-75","children":"The advantage Clojure(Script) has over Javascript is expressiveness and simplicity..."}]]}],["$","div",null,{"children":[["$","p",null,{"className":"mb-2 text-[13px] font-medium text-gray-500","children":"Written By"}],["$","$L54",null,{"verified":false,"name":"Ovidiu Stoica","avatar":"https://firebasestorage.googleapis.com/v0/b/typeshare-2027d.appspot.com/o/TRl7Gksok1c41hHgWEOz73plb452%2Fprofile-photo?alt=media&token=245fd834-31bd-4749-95ee-3b8fb1139508","username":"ovistoica","source":"SocialBlog"}]]}],null]}]}]]}]]}]