<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div><blockquote type="cite" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class=""><div class=""><blockquote type="cite" class=""><div class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class=""><blockquote type="cite" class=""><div class="">On 10 Mar 2016, at 17:28, Radosław Pietruszewski <<a href="mailto:radexpl@gmail.com" class="">radexpl@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><meta http-equiv="Content-Type" content="text/html charset=utf-8" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class="">Trailing comma is not nonsensical, there is a specific purpose in allowing it (unlike your examples), and there’s precedent in Swift already.</div><div class=""><br class=""></div></div></div></blockquote></div></div></div></blockquote></div></div></div></blockquote><br class=""></div><div>Trailing commas enable easier re-ordering of arguments, simplify growing or compacting argument lists, and do no harm.</div><div><br class=""></div><div>Their use in arrays and dictionaries are conventional enough that experienced programmers will not be surprised by their</div><div>presence. No one will force their use and one's internal style guide (and linters) can direct whether any individual group</div><div>adopts or ignores the addition.</div><div><br class=""></div><div>For those of us who prefer trailing commas, it will be both a convenience and an asset. For those against, there's no harm</div><div>done. I find it unlikely that trailing commas will naturally lead to any unsafe code or produce a net negative effect on the</div><div>language or the code-base it supports.</div><div><br class=""></div><div>-- Erica</div><div><br class=""></div><br class=""></body></html>