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Created October 26, 2014 16:17
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Ruby Classes With Different Equality Behavior
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classes-with-diff-eql-==-behavior.md

Ruby Classes With Different ==, eql?, and === Behavior

Float

1.0 == 1     # true
1.0.eql? 1   # false
1.0 === 1    # true

IPAddr

require "ipaddr"

ip = IPAddr.new "127.0.0.1"
ip == "127.0.0.1"   # true
ip.eql? "127.0.0.1" # false
ip === "127.0.0.1"  # true

CSV::Row

require "csv"

row = {"A"=>"X", "B"=>"Y"}
csv = CSV::Row.new row.keys, row.values

csv == row.to_a   # true
csv.eql? row.to_a # false
csv === row.to_a  # true
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