Meet Dom — Ruby Quicktips: Convert anything to boolean

14 June 2011
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rubyquicktips
Ruby Quicktips: Convert anything to boolean →
Just add !! (a.k.a. the double bang operator) before any statement:
```
>> @document = Document.new
=> <Document id: nil, title: nil> >> @document.title
=> nil
>> !!@document.title
=> false >> @document.title = "My new document"
>> !!@document.title
=> true
```
In Rails, you can use the name of your…

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