Sat Jan 7
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“ I Googled you recently and I deeply enjoyed your website. You’re really narcissistic. I mean that in a very good way. ”
My friend, who is a “Psychoanalytic Psychotherapist”
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Tip
Filter collections by class with
Tip
Filter collections by class with Enumerable#grep
Enumerable#grep uses the === operator internally, so in addition to matching each value in a collection against a regular expression, you can match against a class too.
>> [1.2, 3, ‘5’, nil, 7].grep(Numeric)
=> [1.2, 3, 7]