Varargs ...or not to Varargs

[acutmore]

CompositeKey(1, 2, 3) vs CompositeKey([1, 2, 3])

Varargs:

• Pro: Don't need to create an array when creating a key, potentially less overhead
• Con: Can hit engine limits of number of arguments (perhaps a good thing, large composite keys might be an anti-pattern)
• Pro: Cleaner?

One-arg:

• Pro: Allows room for things like an options bag in the future CompositeKey([1, 2, 3], { someSetting: true })
• Con: Need to create an extra object when creating a key, potentially more overhead

• Con: More verbose?

  Existing APIs:

  new Array(1, 2, 3);
  new Set([1, 2, 3]);