Writing code against IList instead of ArrayList, or IDatabase instead of Postgre... | Hacker News

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dustingetz on Jan 4, 2016 | parent | context | favorite | on: Overcoming Intuition in Programming

Writing code against IList instead of ArrayList, or IDatabase instead of PostgresDatabase unambiguously decreases coupling.

Hermel on Jan 5, 2016 [–]

Not if you explicitely configure the IList to be an instance of ArrayList and expect it to behave like an ArrayList. In that case, just taking an ArrayList is the more honest and more readable option.

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