Returns true if this gem is installable for the current platform.
Returns true if this gem is installable for the current platform.
Returns true if this specification is installable on this platform.
Does this dependency require a prerelease?
Indicate if this NameTuple is for a prerelease version.
Resolve the requested dependencies and return an Array of Specification objects to be activated.
A requirement is a prerelease if any of the versions inside of it are prereleases
A version is considered a prerelease if it contains a letter.
Proceed with resolution! Returns an array of ActivationRequest objects.
Returns true if URI does not have a scheme (e.g. http:// or https://) specified.
Receive a message to the port (which was sent there by Port#send).
port = Ractor::Port.new r = Ractor.new port do |port| port.send('message1') end v1 = port.receive puts "Received: #{v1}" r.join # Here will be printed: "Received: message1"
The method blocks if the message queue is empty.
port = Ractor::Port.new r = Ractor.new port do |port| wait puts "Still not received" port.send('message1') wait puts "Still received only one" port.send('message2') end puts "Before first receive" v1 = port.receive puts "Received: #{v1}" v2 = port.receive puts "Received: #{v2}" r.join
Output:
Before first receive Still not received Received: message1 Still received only one Received: message2
If close_incoming was called on the ractor, the method raises Ractor::ClosedError if there are no more messages in the message queue:
port = Ractor::Port.new port.close port.receive #=> raise Ractor::ClosedError
Returns the replacement string.
ec = Encoding::Converter.new("euc-jp", "us-ascii") p ec.replacement #=> "?" ec = Encoding::Converter.new("euc-jp", "utf-8") p ec.replacement #=> "\uFFFD"
Sets the replacement string.
ec = Encoding::Converter.new("utf-8", "us-ascii", :undef => :replace) ec.replacement = "<undef>" p ec.convert("a \u3042 b") #=> "a <undef> b"
Returns the new string formed by calling method inspect on each array element:
a = [:foo, 'bar', 2] a.inspect # => "[:foo, \"bar\", 2]"
Related: see Methods for Converting.
Returns a new array that is the union of the elements of self and all given arrays other_arrays; items are compared using eql?:
[0, 1, 2, 3].union([4, 5], [6, 7]) # => [0, 1, 2, 3, 4, 5, 6, 7]
Removes duplicates (preserving the first found):
[0, 1, 1].union([2, 1], [3, 1]) # => [0, 1, 2, 3]
Preserves order (preserving the position of the first found):
[3, 2, 1, 0].union([5, 3], [4, 2]) # => [3, 2, 1, 0, 5, 4]
With no arguments given, returns a copy of self.
Related: see Methods for Combining.
Returns a new array containing each element in self that is eql? to at least one element in each of the given other_arrays; duplicates are omitted:
[0, 0, 1, 1, 2, 3].intersection([0, 1, 2], [0, 1, 3]) # => [0, 1]
Each element must correctly implement method hash.
Order from self is preserved:
[0, 1, 2].intersection([2, 1, 0]) # => [0, 1, 2]
Returns a copy of self if no arguments are given.
Related: see Methods for Combining.
Prepends the given objects to self:
a = [:foo, 'bar', 2] a.unshift(:bam, :bat) # => [:bam, :bat, :foo, "bar", 2]
Related: Array#shift; see also Methods for Assigning.
Inserts the given objects as elements of self; returns self.
When index is non-negative, inserts objects before the element at offset index:
a = ['a', 'b', 'c'] # => ["a", "b", "c"] a.insert(1, :x, :y, :z) # => ["a", :x, :y, :z, "b", "c"]
Extends the array if index is beyond the array (index >= self.size):
a = ['a', 'b', 'c'] # => ["a", "b", "c"] a.insert(5, :x, :y, :z) # => ["a", "b", "c", nil, nil, :x, :y, :z]
When index is negative, inserts objects after the element at offset index + self.size:
a = ['a', 'b', 'c'] # => ["a", "b", "c"] a.insert(-2, :x, :y, :z) # => ["a", "b", :x, :y, :z, "c"]
With no objects given, does nothing:
a = ['a', 'b', 'c'] # => ["a", "b", "c"] a.insert(1) # => ["a", "b", "c"] a.insert(50) # => ["a", "b", "c"] a.insert(-50) # => ["a", "b", "c"]
Raises IndexError if objects are given and index is negative and out of range.
Related: see Methods for Assigning.
With a block given, calls the block with each element of self; returns a new array whose elements are the return values from the block:
a = [:foo, 'bar', 2] a1 = a.map {|element| element.class } a1 # => [Symbol, String, Integer]
With no block given, returns a new Enumerator.
Related: collect!; see also Methods for Converting.
With a block given, calls the block with each element of self and replaces the element with the block’s return value; returns self:
a = [:foo, 'bar', 2] a.map! { |element| element.class } # => [Symbol, String, Integer]
With no block given, returns a new Enumerator.
Related: collect; see also Methods for Converting.
Returns a new array that is self as a transposed matrix:
a = [[:a0, :a1], [:b0, :b1], [:c0, :c1]] a.transpose # => [[:a0, :b0, :c0], [:a1, :b1, :c1]]
The elements of self must all be the same size.
Related: see Methods for Converting.
Returns a new array containing only the non-nil elements from self; element order is preserved:
a = [nil, 0, nil, false, nil, '', nil, [], nil, {}] a.compact # => [0, false, "", [], {}]
Related: Array#compact!; see also Methods for Deleting.