Add the –version option to the option parser.
Replaces the content of self with the content of other_array; returns self:
a = [:foo, 'bar', 2] a.replace(['foo', :bar, 3]) # => ["foo", :bar, 3]
Replaces the contents of str with the corresponding values in other_str.
s = "hello" #=> "hello" s.replace "world" #=> "world"
Returns true if str starts with one of the prefixes given. Each of the prefixes should be a String or a Regexp.
"hello".start_with?("hell") #=> true "hello".start_with?(/H/i) #=> true # returns true if one of the prefixes matches. "hello".start_with?("heaven", "hell") #=> true "hello".start_with?("heaven", "paradise") #=> false
Returns whether ASCII-compatible or not.
Encoding::UTF_8.ascii_compatible? #=> true Encoding::UTF_16BE.ascii_compatible? #=> false
Waits until IO is priority and returns true or false when times out.
Dup internal hash.
Returns true if sym starts with one of the prefixes given. Each of the prefixes should be a String or a Regexp.
:hello.start_with?("hell") #=> true :hello.start_with?(/H/i) #=> true # returns true if one of the prefixes matches. :hello.start_with?("heaven", "hell") #=> true :hello.start_with?("heaven", "paradise") #=> false
Duplicates a StringScanner object.
Replaces the entire contents of self with the contents of other_hash; returns self:
h = {foo: 0, bar: 1, baz: 2} h.replace({bat: 3, bam: 4}) # => {:bat=>3, :bam=>4}
Returns the Laplace expansion along given row or column.
Matrix[[7,6], [3,9]].laplace_expansion(column: 1) # => 45 Matrix[[Vector[1, 0], Vector[0, 1]], [2, 3]].laplace_expansion(row: 0) # => Vector[3, -2]
Called for dup & clone.
Called for dup & clone.
Returns the number of threads waiting on the queue.
Returns the number of threads waiting on the queue.
The version of the Marshal format for your Ruby.
How String Gem paths should be split. Overridable for esoteric platforms.
Get a single optional argument from the command line. If more than one argument is given, return only the first. Return nil if none are given.