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Masato Ohba
Masato Ohba

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Convert emoji and codepoints each other in Ruby

#ruby #emoji #unicode

The tips below are what I've learned while implementing a gem, github_reactions, to summarize reactions on GitHub issues and pull requests.

Get codepoints from emoji 

"👍".unpack("U*") => [128077] "👍".codepoints => [128077] # Convert to hexadecimal "👍".each_codepoint.map {|n| n.to_s(16) } => ["1f44d"]
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Get emoji from codepoints 

[128077].pack("U*") => "👍" 0x1f44d.chr('UTF-8') => "👍" "\u{1f44d}" => "👍"
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