[#72745] [Ruby trunk - Misc #11876] [Closed] Scheduled maintenance 2016/01/01 — shibata.hiroshi@...
Issue #11876 has been updated by Hiroshi SHIBATA.
4 messages
2016/01/07
[#72746] Re: [Ruby trunk - Misc #11876] [Closed] Scheduled maintenance 2016/01/01
— Eric Wong <normalperson@...>
2016/01/07
shibata.hiroshi@gmail.com wrote:
[#72824] [Ruby trunk - Bug #11973] IO#advise should raise NotImplementedError on platforms that do not support that call — git@...
Issue #11973 has been updated by Chuck Remes.
3 messages
2016/01/12
[#72954] [Ruby trunk - Feature #12010] [Assigned] Exclude dot and dotdot from Dir#each — naruse@...
Issue #12010 has been reported by Yui NARUSE.
4 messages
2016/01/20
[#72959] Re: [Ruby trunk - Feature #12010] [Assigned] Exclude dot and dotdot from Dir#each
— Eric Wong <normalperson@...>
2016/01/20
naruse@airemix.jp wrote:
[#73313] [Ruby trunk - Bug #12007] [Open] Newly added Unicode data file doesn't get downloaded — shugo@...
Issue #12007 has been updated by Shugo Maeda.
3 messages
2016/01/23
[#73372] [Ruby trunk - Misc #12004] Code of Conduct — benton@...
Issue #12004 has been updated by Benton Barnett.
4 messages
2016/01/24
[#73379] Re: [Ruby trunk - Misc #12004] Code of Conduct
— KOSAKI Motohiro <kosaki.motohiro@...>
2016/01/24
On Sun, Jan 24, 2016 at 5:13 PM, <benton@bentonbarnett.com> wrote:
[#73421] [Ruby trunk - Misc #12004] Code of Conduct — nekocat432@...
Issue #12004 has been updated by Ruby Dino.
6 messages
2016/01/25
[#73425] Re: [Ruby trunk - Misc #12004] Code of Conduct
— Austin Ziegler <halostatue@...>
2016/01/25
I’m sorry, but this, like the code of merit, is merely a derailing tactic.
[#73469] Re: [Ruby trunk - Misc #12004] Code of Conduct
— Martin J. Dürst <duerst@...>
2016/01/26
On 2016/01/26 01:32, Austin Ziegler wrote:
[#73482] Re: [Ruby trunk - Misc #12004] Code of Conduct
— Austin Ziegler <halostatue@...>
2016/01/26
On Tue, Jan 26, 2016 at 12:25 AM, Martin J. Dürst <duerst@it.aoyama.ac.jp>
[#73491] [Ruby trunk - Misc #12004] Code of Conduct — git@...
Issue #12004 has been updated by Chuck Remes.
7 messages
2016/01/26
[#73492] Re: [Ruby trunk - Misc #12004] Code of Conduct
— Andrew Kirilenko <andrew.kirilenko@...>
2016/01/26
They will never provide any numbers because they are not engineers and they
[#73494] Re: [Ruby trunk - Misc #12004] Code of Conduct
— Brandon Weaver <keystonelemur@...>
2016/01/26
Coraline is a panelist on Ruby rogues and a very well respected member of
[#73498] Re: [Ruby trunk - Misc #12004] Code of Conduct
— Andrew Kirilenko <andrew.kirilenko@...>
2016/01/26
OK, sorry for previous comment. Let's try this way.
[#73500] Re: [Ruby trunk - Misc #12004] Code of Conduct
— Austin Ziegler <halostatue@...>
2016/01/26
On Tue, Jan 26, 2016 at 5:15 PM, Andrew Kirilenko <
[#73558] [Ruby trunk - Misc #12004] Code of Conduct — andrew.kirilenko@...
Issue #12004 has been updated by Andrew Kirilenko.
5 messages
2016/01/28
[#73568] Re: [Ruby trunk - Misc #12004] Code of Conduct
— Austin Ziegler <halostatue@...>
2016/01/29
Andrew, please stop digging. Your hole is only getting deeper.
[#73573] Re: [Ruby trunk - Misc #12004] Code of Conduct
— Andrew Kirilenko <andrew.kirilenko@...>
2016/01/29
>Andrew, please stop digging. Your hole is only getting deeper.
[#73586] [Ruby trunk - Misc #12004] Code of Conduct — andrew@...
Issue #12004 has been updated by Andrew Vit.
4 messages
2016/01/29
[#73593] [Ruby trunk - Bug #12034] RegExp does not respect file encoding directive — nobu@...
Issue #12034 has been updated by Nobuyoshi Nakada.
3 messages
2016/01/30
[ruby-core:73591] [Ruby trunk - Feature #11848] New #to_b method for String, Symbol, Numeric, NilClass, TrueClass and FalseClass.
From:
andrew@...
Date:
2016-01-30 02:04:08 UTC
List:
ruby-core #73591
Issue #11848 has been updated by Andrew Vit.
I've had to do this in a few places over the years myself:
~~~
TRUTHY_VALUES = [true, 1, '1', 't', 'T', 'true', 'TRUE', 'y', 'Y', 'yes', 'YES']
FALSY_VALUES = [false, 0, '0', 'f', 'F', 'false', 'FALSE', 'n', 'N', 'no', 'NO']
~~~
> You forgot empty string/array/hash to be false. ;-)
I think the main reason for this is handling user input (from a file like CSV or other), so other types like Array/Hash are not expected there: just basic scalar values.
Still, it probably only makes sense for some specific situations.
----------------------------------------
Feature #11848: New #to_b method for String, Symbol, Numeric, NilClass, TrueClass and FalseClass.
https://bugs.ruby-lang.org/issues/11848#change-56786
* Author: Fernando Hamasaki de Amorim
* Status: Rejected
* Priority: Normal
* Assignee: Yukihiro Matsumoto
----------------------------------------
New ***to_b*** method converts **strings**, **symbols**, **numbers** and **nil** values in a **boolean** value.
***to_b*** method is available on ***String***, ***Symbol***, ***Numeric***, ***TrueClass***, ***FalseClass*** and ***NilClass*** classes.
## String
Returns ***true*** if string is one of **t**, **true**, **on**, **y**, **yes** or **1** values. Returns ***false*** otherwise.
Ignores trailing spaces and letter cases.
~~~ruby
't'.to_b # => true
'true'.to_b # => true
'on'.to_b # => true
'y'.to_b # => true
'yes'.to_b # => true
'1'.to_b # => true
''.to_b # => false
'0'.to_b # => false
'2'.to_b # => false
'-1'.to_b # => false
'f'.to_b # => false
'false'.to_b # => false
'off'.to_b # => false
'n'.to_b # => false
'no'.to_b # => false
'wherever'.to_b # => false
~~~
## Symbol
Same as ***symbol.to_s.to_b***.
~~~ruby
:'1'.to_b # => true
:t.to_b # => true
:true.to_b # => true
:on.to_b # => true
:y.to_b # => true
:yes.to_b # => true
:f.to_b # => false
:false.to_b # => false
:off.to_b # => false
:n.to_b # => false
:no.to_b # => false
:wherever.to_b # => false
~~~
## Numeric
Returns ***false*** if number is **zero**. Returns ***true*** otherwise.
### Integer
~~~ruby
0.to_b # => false
1.to_b # => true
2.to_b # => true
-1.to_b # => true
-2.to_b # => true
~~~
### Float
~~~ruby
0.0.to_b # => false
0.1.to_b # => true
1.0.to_b # => true
-0.1.to_b # => true
-1.0.to_b # => true
~~~
### BigDecimal
~~~ruby
require 'bigdecimal'
BigDecimal('0.0').to_b # => false
BigDecimal('0.1').to_b # => true
BigDecimal('1.0').to_b # => true
BigDecimal('-0.1').to_b # => true
BigDecimal('-1.0').to_b # => true
~~~
## NilClass
Returns ***false***.
~~~ruby
nil.to_b # => false
~~~
## TrueClass
Returns ***true***.
~~~ruby
true.to_b # => true
~~~
## FalseClass
Returns ***false***.
~~~ruby
false.to_b # => false
~~~
---Files--------------------------------
to_b_method.diff (9.63 KB)
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