From: "yhara (Yutaka HARA)" <redmine@...>
Date: 2012-10-25T19:37:42+09:00
Subject: [ruby-core:48255] [ruby-trunk - Feature #6561] ?= operator


Issue #6561 has been updated by yhara (Yutaka HARA).

Target version changed from 2.0.0 to next minor


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Feature #6561: ?= operator
https://bugs.ruby-lang.org/issues/6561#change-31533

Author: slayer (Vlad Moskovets)
Status: Open
Priority: Normal
Assignee: 
Category: 
Target version: next minor


I have feature proposition to add new opearator ?= its like ||= but assigns only when variable is not defined
So it should be shortcut for

    @var ?= 1

eq

    defined?(@var) ? @var : @var = 1

It should useful for caching nil'able or false'able items



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