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Comment by purple-dragon | Hacker News Reader

For unique, I prefer to let javascript do the work:

  // Grab unique
  [...new Set([1,1,2,3,4])]

Although it wouldn't work if you were using objects and wanted to do a deep comparison e.g.

    [...new Set([{x: 1}, {x: 1}])]

... an important observation, for sure.

Yeah, I recently did a project in Javascript (as a longtime C++ programmer) and was bitten by this exact problem.

Javascript is great but sometimes I miss the predicability of the STL.