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I notice one line code in spree library:
label_with_first_letters_capitalized = t(options[:label]).gsub(/\b\w/)#{$&.upcase}
could someone tell me what does "$&" mean ? thanks!
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Speaking of the meaning of the song, Vegard characterizes it as coming from "a genuine wonder of what the fox says, because we didn't know". Although interpreted by some commentators as a reference to the furry fandom, the brothers have stated they did not know about its existence when producing "The Fox".
One of the most common fox vocalizations is a raspy bark. Scientists believe foxes use this barking sound to identify themselves and communicate with other foxes. Another eerie fox vocalization is a type of high-pitched howl that's almost like a scream.
Ask Google Assistant to name a song On your phone, touch and hold the Home button or say "Hey Google." Ask "What's this song?" Play a song or hum, whistle, or sing the melody of a song. Hum, whistle, or sing: Google Assistant will identify potential matches for the song.
Here is a reference to some of those special variables allowed in ruby. Basically, this one returns whatever the last pattern match was.
From linked page:
$&contains the matched string from the previous successful pattern match.>> "the quick brown fox".match(/quick.*fox/) => #<MatchData:0x129cc40> >> $& => "quick brown fox"
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In my testing, it appears to be the last match that gsub got. So for instance, if I have this:
"Hello, world!".gsub(/o./, "a")
$& would be set to or, because that is the last match that gsub encountered.
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