U:RDoc::AnyMethod[iI"delete:ETI"ENV::delete;TT:publico:RDoc::Markup::Document:@parts[o:RDoc::Markup::Paragraph;	[I"UDeletes the environment variable with +name+ if it exists and returns its value:;To:RDoc::Markup::Verbatim;	[I"ENV['foo'] = '0'
;TI" ENV.delete('foo') # => '0'
;T:@format0o;
;	[I"DReturns +nil+ if the named environment variable does not exist:;To;;	[I" ENV.delete('foo') # => nil
;T;0o;
;	[I"CIf a block given and the environment variable does not exist, ;TI"2yields +name+ to the block and returns +nil+:;To;;	[I"5ENV.delete('foo') { |name| puts name } # => nil
;TI"	foo
;T;0o;
;	[I";If a block given and the environment variable exists, ;TI"Qdeletes the environment variable and returns its value (ignoring the block):;To;;	[I"ENV['foo'] = '0'
;TI":ENV.delete('foo') { |name| fail 'ignored' } # => "0"
;T;0o;
;	[I"/Raises an exception if +name+ is invalid. ;TI"OSee {Invalid Names and Values}[#class-ENV-label-Invalid-Names+and+Values].;T:
@fileI"hash.c;T:0@omit_headings_from_table_of_contents_below0I"[ENV.delete(name)                  -> value
ENV.delete(name) { |name| block } -> value
;T0[I"	(p1);T@,FI"ENV;TcRDoc::NormalClass00