[10，20，50，99]地图（安培;。检查）。加入（，）＃=＆GT; '10，20，50，99
 

I have an array:

array = ["10", "20", "50", "99"]

and want to convert it into a simple comma-separated string list like this:

"10", "20", "50", "99"

["10", "20", "50","99"].map(&:inspect).join(', ') # => '"10", "20", "50", "99"'