Returns the leading (‘type’) part of the media type from the value of field 'Content-Type'
, or nil
if no such field exists; see Content-Type response header:
res = Net::HTTP.get_response(hostname, '/todos/1') res['content-type'] # => "application/json; charset=utf-8" res.main_type # => "application"
returns a Time
that represents the Last-Modified field.
For the given source, parses with prism and returns a list of all of the sets of local variables that were encountered.
Return a Hash
for RJIT statistics. --rjit-stats makes more information available.
Creates a new digest instance using the specified algorithm
. The default is SHA256.
Signs in with the RubyGems API at sign_in_host
and sets the rubygems API key.
Message to promote available RubyGems update with related gem update command.
Invokes system, but silences all output.
Enumerates the parents of directory
.
Set
the effective user ID, and if possible, the saved user ID of the process to the given user. Returns the new effective user ID. Not available on all platforms.
[Process.uid, Process.euid] #=> [0, 0] Process::UID.grant_privilege(31) #=> 31 [Process.uid, Process.euid] #=> [0, 31]
Exchange real and effective user IDs and return the new effective user ID. Not available on all platforms.
[Process.uid, Process.euid] #=> [0, 31] Process::UID.re_exchange #=> 0 [Process.uid, Process.euid] #=> [31, 0]
Returns true
if the real and effective user IDs of a process may be exchanged on the current platform.
Set
the effective group ID, and if possible, the saved group ID of the process to the given group. Returns the new effective group ID. Not available on all platforms.
[Process.gid, Process.egid] #=> [0, 0] Process::GID.grant_privilege(31) #=> 33 [Process.gid, Process.egid] #=> [0, 33]
Exchange real and effective group IDs and return the new effective group ID. Not available on all platforms.
[Process.gid, Process.egid] #=> [0, 33] Process::GID.re_exchange #=> 0 [Process.gid, Process.egid] #=> [33, 0]
Returns true
if the real and effective group IDs of a process may be exchanged on the current platform.
Check if --yjit-stats
is used.
Discard statistics collected for --yjit-stats
.
Return a hash for statistics generated for the --yjit-stats
command line option. Return nil
when option is not passed or unavailable.