From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS4713 221.184.0.0/13 X-Spam-Status: No, score=-3.8 required=3.0 tests=AWL,BAYES_00, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_PASS shortcircuit=no autolearn=ham autolearn_force=no version=3.4.2 Received: from neon.ruby-lang.org (neon.ruby-lang.org [221.186.184.75]) by dcvr.yhbt.net (Postfix) with ESMTP id CCFBB1F462 for ; Thu, 23 May 2019 15:46:22 +0000 (UTC) Received: from neon.ruby-lang.org (localhost [IPv6:::1]) by neon.ruby-lang.org (Postfix) with ESMTP id D92AE1209D5; Fri, 24 May 2019 00:46:17 +0900 (JST) Received: from o1678916x28.outbound-mail.sendgrid.net (o1678916x28.outbound-mail.sendgrid.net [167.89.16.28]) by neon.ruby-lang.org (Postfix) with ESMTPS id B46EC120AAD for ; Fri, 24 May 2019 00:46:15 +0900 (JST) Received: by filter0138p3mdw1.sendgrid.net with SMTP id filter0138p3mdw1-15924-5CE6C048-30 2019-05-23 15:46:16.692913087 +0000 UTC m=+666444.111198721 Received: from herokuapp.com (unknown [184.73.130.48]) by ismtpd0006p1iad2.sendgrid.net (SG) with ESMTP id DnvmoNcGQbCi0qV1SrYXKA for ; Thu, 23 May 2019 15:46:16.704 +0000 (UTC) Date: Thu, 23 May 2019 15:46:16 +0000 (UTC) From: nobu@ruby-lang.org Message-ID: References: Mime-Version: 1.0 X-Redmine-MailingListIntegration-Message-Ids: 68286 X-Redmine-Project: ruby-trunk X-Redmine-Issue-Id: 15323 X-Redmine-Issue-Author: alfonsojimenez X-Redmine-Sender: nobu X-Mailer: Redmine X-Redmine-Host: bugs.ruby-lang.org X-Redmine-Site: Ruby Issue Tracking System X-Auto-Response-Suppress: All Auto-Submitted: auto-generated X-SG-EID: =?us-ascii?Q?q8Dly+pU2+3ektTtZVXgZtbJPXwqo7p86jCsvYTW4BwMZhbFjetwm4PXTLg8go?= =?us-ascii?Q?KoMt7+HJk5QeHWGmwuizpP7B+bDIn73o9o3w1oU?= =?us-ascii?Q?yJ2+bdTbNqc1M9qFuo4c45SX6Ti=2FTUoWmVotDgc?= =?us-ascii?Q?APnC75wsvKfD0u9fBVdbSJtICdFRD1l3gWGnJGd?= =?us-ascii?Q?cbPosdDYsNRBSdnxofqv8+7JRNcgl+jfVKw=3D=3D?= To: ruby-core@ruby-lang.org X-ML-Name: ruby-core X-Mail-Count: 92802 Subject: [ruby-core:92802] [Ruby trunk Feature#15323] [PATCH] Proposal: Add Enumerable#filter_map X-BeenThere: ruby-core@ruby-lang.org X-Mailman-Version: 2.1.15 Precedence: list Reply-To: Ruby developers List-Id: Ruby developers List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Errors-To: ruby-core-bounces@ruby-lang.org Sender: "ruby-core" Issue #15323 has been updated by nobu (Nobuyoshi Nakada). IIRC, at the last meeting (20190522), the conclusion was that this method s= hould select non-nil values only, like as `Array#compact`. Am I correct? ---------------------------------------- Feature #15323: [PATCH] Proposal: Add Enumerable#filter_map https://bugs.ruby-lang.org/issues/15323#change-78176 * Author: alfonsojimenez (Alfonso Jim=E9nez) * Status: Closed * Priority: Normal * Assignee: = * Target version: = ---------------------------------------- This is a proposal for a combined `filter` + `map` method (https://bugs.rub= y-lang.org/issues/5663). This method both filters and maps the elements of an enumerable in just one= iteration: ~~~ ruby (1..10).filter_map { |i| i * 2 if i.even? } #=3D> [4, 8, 12, 16, 20] ~~~ GitHub PR: https://github.com/ruby/ruby/pull/2017 = ---Files-------------------------------- 0001-Adding-Enumerable-filter_map.patch (4.61 KB) -- = https://bugs.ruby-lang.org/ Unsubscribe: