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instance method

Net::HTTPHeader#key?

(::interned key) -> bool

key?(key)

# File tmp/rubies/ruby-4.1.0-preview1/lib/net/http/header.rb, line 481
def key?(key)
  @header.key?(key.downcase.to_s)
end

Returns true if the field for the case-insensitive key exists, false otherwise:

Example

req = Net::HTTP::Get.new(uri)
req.key?('Accept') # => true
req.key?('Nosuch') # => false

See also #get_fields #main_type #form_data= #proxy_basic_auth also in 4.0 · 3.4 · 3.3 · 3.2 · 3.1 · 3.0