method

exist?

rails latest stable - Class: ActiveSupport::Cache::Store

exist?(name, options = nil)

public

Returns true if the cache contains an entry for the given key.

Options are passed to the underlying cache implementation.

# File activesupport/lib/active_support/cache.rb, line 702
      def exist?(name, options = nil)
        options = merged_options(options)

        instrument(:exist?, name) do |payload|
          entry = read_entry(normalize_key(name, options), **options, event: payload)
          (entry && !entry.expired? && !entry.mismatched?(normalize_version(name, options))) || false
        end
      end

exist?

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