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True but the appeal for most developers is it's simple to implement. Virtually every language has a UUID library that works in one line or code.

Like in Go, it's just uuid.New().String() vs using crypto/rand to read random data, convert it into Base64 of hex... which will take more lines and effort.

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This is an unfair argument. Which standard library in Go gives you uuid.New().String()? Anyone can publish a third party library that condenses reading random data, creating an identifier from it, and rendering it as a string into a single line of code API.

No, it's not a standard library, but my point is UUID is standard and thus present in almost every language with a one line abstraction.

> Anyone can publish a third party library

I propose leftpad.js

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