From: "Phalado (Raphael Cordeiro) via ruby-core" <ruby-core@ml.ruby-lang.org>
To: ruby-core@ml.ruby-lang.org
Cc: "Phalado (Raphael Cordeiro)" <noreply@ruby-lang.org>
Subject: [ruby-core:123122] [Ruby Feature#21556] Add true? and false? methods to NilClass, TrueClass, FalseClass, and String
Date: Fri, 29 Aug 2025 17:28:11 +0000 (UTC) [thread overview]
Message-ID: <redmine.issue-21556.20250829172810.59013@ruby-lang.org> (raw)
In-Reply-To: <redmine.issue-21556.20250829172810.59013@ruby-lang.org>
Issue #21556 has been reported by Phalado (Raphael Cordeiro).
----------------------------------------
Feature #21556: Add true? and false? methods to NilClass, TrueClass, FalseClass, and String
https://bugs.ruby-lang.org/issues/21556
* Author: Phalado (Raphael Cordeiro)
* Status: Open
----------------------------------------
Sometimes we need to check for an exact `true` or `false` value. This can be a string or a boolean value.
Usually, what I do to solve this is something like `value.to_s == true`, this way covering for strings, booleans, and nil values.
The idea of these new methods is to check for the exact value, being it a String, a Boolean, or even a Nil value.
This is the result obtained:
``` ruby
# String
'true'.true? # true
'false'.true? # false
''.true? # false
'true'.false? # false
'false'.false? # true
''.false? # false
# Boolean
true.true? # true
true.false? # false
false.true? # false
false.false? # true
# Nil
nil.true? # false
nil.false? # false
```
--
https://bugs.ruby-lang.org/
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next parent reply other threads:[~2025-08-29 17:29 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-29 17:28 Phalado (Raphael Cordeiro) via ruby-core [this message]
2025-08-29 22:50 ` [ruby-core:123129] " nobu (Nobuyoshi Nakada) via ruby-core
2025-08-30 22:58 ` [ruby-core:123139] " Phalado (Raphael Cordeiro) via ruby-core
2025-08-31 0:00 ` [ruby-core:123140] " austin (Austin Ziegler) via ruby-core
2025-09-01 0:54 ` [ruby-core:123149] " shan (Shannon Skipper) via ruby-core
2025-09-01 13:44 ` [ruby-core:123157] " Phalado (Raphael Cordeiro) via ruby-core
2025-09-01 13:50 ` [ruby-core:123158] " Phalado (Raphael Cordeiro) via ruby-core
2025-09-14 1:30 ` [ruby-core:123245] " nobu (Nobuyoshi Nakada) via ruby-core
2025-09-14 1:35 ` [ruby-core:123246] " nobu (Nobuyoshi Nakada) via ruby-core
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