Is this worthy of support? Or does it belong into a library?

The two concatenation approaches I know of are:
1. via +=
2. push() into an array, join() it after the last push()

(1) can’t possibly be efficient, but if (2) is OK on all(!) platforms, then a 
library would be OK. However, given how frequently this is used, I would like 
this to become part of the standard library.

Dr. Axel Rauschmayer


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