Oh, thank you.
One more question, do you consider add support for `present?`, i wrote
code like this at the end of that file.
```
[FalseClass, Object, NilClass, Numeric, String, TrueClass].each do |klass|
# :nocov:
klass.define_method(:present?) { !blank? }
# :nocov:
end
```
在2021年8月4日星期三 UTC+8 下午10:43:17<Jeremy Evans> 写道：
> On Wed, Aug 4, 2021 at 7:35 AM Billy Zheng <[email protected]> wrote:
>
>> I write a gem use the code from `sequel/extensions/blank`, when i reading
>> following code, i don't understand why we need run `alias_method` like
>> following?
>>
>> ```rb
>> [FalseClass, Object, NilClass, Numeric, String, TrueClass].each do |klass|
>> # :nocov:
>> if klass.method_defined?(:blank?)
>> klass.send(:alias_method, :blank?, :blank?)
>> end
>> # :nocov:
>> end
>> ```
>>
>
> This self-aliasing is done to avoid warning messages in verbose warning
> mode if an existing blank? method is already defined. It's the officially
> recommended way of avoiding the warning messages.
>
> Thanks,
> Jeremy
>
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