Join elements into a string with commas separating each value. Add a conjunction before the final
item in the list. If the array has a length < 2, the conjunction is not added. If the list is
only of length 2, then no commas are added.
Parameters
list: readonly any[]
Array of items to be converted into strings. Works best if these are simply strings to begin
with.
conjunction: string = 'and'
The conjunction to be used before the final element.
Join elements into a string with commas separating each value. Add a conjunction before the final item in the list. If the array has a length < 2, the conjunction is not added. If the list is only of length 2, then no commas are added.