Today I learned that as of Ruby 3, we can omit values from hashes if the key name matches the expression:
# In Rubies < v3:
a = "alice"
b = "bob"
h = {a: a, b: b}
# In Rubies >= v3:
a = "alice"
b = "bob"
h = {a:, b:}
Raghu Betina
Posted on
TIL: Hash value omission in Ruby 3
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