<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>+1 strongly agree with Erica. I do not see huge realistic side effects and helping to improve diff's and thus code reviews is a big and important plus :).<br><br>Sent from my iPhone</div><div><br>On 10 Mar 2016, at 20:27, Erica Sadun via swift-evolution <<a href="mailto:swift-evolution@swift.org">swift-evolution@swift.org</a>> wrote:<br><br></div><blockquote type="cite"><div><meta http-equiv="Content-Type" content="text/html charset=utf-8"><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=""></div></blockquote><blockquote type="cite"><div><span>_______________________________________________</span><br><span>swift-evolution mailing list</span><br><span><a href="mailto:swift-evolution@swift.org">swift-evolution@swift.org</a></span><br><span><a href="https://lists.swift.org/mailman/listinfo/swift-evolution">https://lists.swift.org/mailman/listinfo/swift-evolution</a></span><br></div></blockquote></body></html>