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instance method

PStore#key?

key?(key)

# File tmp/rubies/ruby-3.2.0/lib/pstore.rb, line 509
def key?(key)
  in_transaction
  @table.key? key
end

Returns true if key exists, false otherwise:

Example

example_store do |store|
  store.transaction do
    store.key?(:foo) # => true
  end
end

Raises an exception if called outside a transaction block.

See also #in_transaction_wr #keys #in_transaction #load_data also in 3.4 · 3.3