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Dir : ~/proc/self/root/usr/share/ri/3.0.0/system/Array/
View File Name : slice-i.ri

U:RDoc::AnyMethod[iI"
slice:ETI"Array#slice;TF:publico:RDoc::Markup::Document:@parts[&o:RDoc::Markup::Paragraph;	[I":Returns elements from +self+; does not modify +self+.;To:RDoc::Markup::BlankLine�o;
;	[I"]When a single \Integer argument +index+ is given, returns the element at offset +index+:;To:RDoc::Markup::Verbatim;	[	I"a = [:foo, 'bar', 2]
;TI"a[0] # => :foo
;TI"a[2] # => 2
;TI"a # => [:foo, "bar", 2]
;T:@format0o;
;	[I"BIf +index+ is negative, counts relative to the end of +self+:;To;;	[I"a = [:foo, 'bar', 2]
;TI"a[-1] # => 2
;TI"a[-2] # => "bar"
;T;
0o;
;	[I"/If +index+ is out of range, returns +nil+.;T@o;
;	[I"AWhen two \Integer arguments +start+ and +length+ are given, ;TI"freturns a new \Array of size +length+ containing successive elements beginning at offset +start+:;To;;	[I"a = [:foo, 'bar', 2]
;TI" a[0, 2] # => [:foo, "bar"]
;TI"a[1, 2] # => ["bar", 2]
;T;
0o;
;	[I"FIf <tt>start + length</tt> is greater than <tt>self.length</tt>, ;TI"9returns all elements from offset +start+ to the end:;To;;	[	I"a = [:foo, 'bar', 2]
;TI"#a[0, 4] # => [:foo, "bar", 2]
;TI"a[1, 3] # => ["bar", 2]
;TI"a[2, 2] # => [2]
;T;
0o;
;	[I">If <tt>start == self.size</tt> and <tt>length >= 0</tt>, ;TI" returns a new empty \Array.;T@o;
;	[I",If +length+ is negative, returns +nil+.;T@o;
;	[I"5When a single \Range argument +range+ is given, ;TI"0treats <tt>range.min</tt> as +start+ above ;TI"/and <tt>range.size</tt> as +length+ above:;To;;	[I"a = [:foo, 'bar', 2]
;TI" a[0..1] # => [:foo, "bar"]
;TI"a[1..2] # => ["bar", 2]
;T;
0o;
;	[I"QSpecial case: If <tt>range.start == a.size</tt>, returns a new empty \Array.;T@o;
;	[I"NIf <tt>range.end</tt> is negative, calculates the end index from the end:;To;;	[	I"a = [:foo, 'bar', 2]
;TI"$a[0..-1] # => [:foo, "bar", 2]
;TI"!a[0..-2] # => [:foo, "bar"]
;TI"a[0..-3] # => [:foo]
;T;
0o;
;	[I"RIf <tt>range.start</tt> is negative, calculates the start index from the end:;To;;	[	I"a = [:foo, 'bar', 2]
;TI"a[-1..2] # => [2]
;TI"a[-2..2] # => ["bar", 2]
;TI"$a[-3..2] # => [:foo, "bar", 2]
;T;
0o;
;	[I"JIf <tt>range.start</tt> is larger than the array size, returns +nil+.;To;;	[	I"a = [:foo, 'bar', 2]
;TI"a[4..1] # => nil
;TI"a[4..0] # => nil
;TI"a[4..-1] # => nil
;T;
0o;
;	[I"LWhen a single Enumerator::ArithmeticSequence argument +aseq+ is given, ;TI"Kreturns an Array of elements corresponding to the indexes produced by ;TI"the sequence.;To;;	[I"7a = ['--', 'data1', '--', 'data2', '--', 'data3']
;TI"7a[(1..).step(2)] # => ["data1", "data2", "data3"]
;T;
0o;
;	[I"SUnlike slicing with range, if the start or the end of the arithmetic sequence ;TI"2is larger than array size, throws RangeError.;To;;	[
I"7a = ['--', 'data1', '--', 'data2', '--', 'data3']
;TI"a[(1..11).step(2)]
;TI"3# RangeError (((1..11).step(2)) out of range)
;TI"a[(7..).step(2)]
;TI"1# RangeError (((7..).step(2)) out of range)
;T;
0o;
;	[I"QIf given a single argument, and its type is not one of the listed, tries to ;TI";convert it to Integer, and raises if it is impossible:;To;;	[I"a = [:foo, 'bar', 2]
;TI"I# Raises TypeError (no implicit conversion of Symbol into Integer):
;TI"
a[:foo]
;T;
0o;
;	[I"*Array#slice is an alias for Array#[].;T:
@fileI"array.c;T:0@omit_headings_from_table_of_contents_below000[�I"(*args);T@�FI"
Array;TcRDoc::NormalClass0[@�FI"[];T