June 04
On Wednesday, 3 June 2020 at 16:15:41 UTC, jmh530 wrote:

> Typo (other than Mike's headline):
> "In our exercsie"
> "Chapel’s arrays are more difficult to get started with than Julia’s but are designed to be run on single-core, multicore, and computer clusters using the same or very similar code, which is a good unique selling point." (should have comma between Julia's and but)

Not really. Of the top of my head, the general rules with commas and conjunctions that apply in this case are that you only use a preceding comma when:

* you have a subject and verb after the conjunction (in this case, if it said "but they are", then a comma would be required)
* the comma would add clarity in an otherwise convoluted/ambiguous sentence (which I don't think is the case here)
* artistic license (the author wants to indicate a pause, something more common in fiction writing)

Though multicore should have a hyphen.
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