Results for: "max_by"

@return [Array] specs of default gems that are ‘==` to the given `spec`.

@param [DependencyGraph] graph the graph to find vertices from @return [Edge] The edge this action adds

@param [DependencyGraph] graph the graph to find vertices from @return [Edge] The edge this action adds

Sorts the elements of self in place, using an ordering determined by the block; returns self.

Calls the block with each successive element; sorts elements based on the values returned from the block.

For duplicates returned by the block, the ordering is indeterminate, and may be unstable.

This example sorts strings based on their sizes:

a = ['aaaa', 'bbb', 'cc', 'd']
a.sort_by! {|element| element.size }
a # => ["d", "cc", "bbb", "aaaa"]

Returns a new Enumerator if no block given:

a = ['aaaa', 'bbb', 'cc', 'd']
a.sort_by! # => #<Enumerator: ["aaaa", "bbb", "cc", "d"]:sort_by!>

Returns the count of bytes in self:

"\x80\u3042".bytesize # => 4
"hello".bytesize # => 5

Related: String#length.

Byte Reference—If passed a single Integer, returns a substring of one byte at that position. If passed two Integer objects, returns a substring starting at the offset given by the first, and a length given by the second. If given a Range, a substring containing bytes at offsets given by the range is returned. In all three cases, if an offset is negative, it is counted from the end of str. Returns nil if the initial offset falls outside the string, the length is negative, or the beginning of the range is greater than the end. The encoding of the resulted string keeps original encoding.

"hello".byteslice(1)     #=> "e"
"hello".byteslice(-1)    #=> "o"
"hello".byteslice(1, 2)  #=> "el"
"\x80\u3042".byteslice(1, 3) #=> "\u3042"
"\x03\u3042\xff".byteslice(1..3) #=> "\u3042"

Returns an array of bytes in str. This is a shorthand for str.each_byte.to_a.

If a block is given, which is a deprecated form, works the same as each_byte.

Passes each byte in str to the given block, or returns an enumerator if no block is given.

"hello".each_byte {|c| print c, ' ' }

produces:

104 101 108 108 111

Calls the given block once for each byte (0..255) in ios, passing the byte as an argument. The stream must be opened for reading or an IOError will be raised.

If no block is given, an enumerator is returned instead.

f = File.new("testfile")
checksum = 0
f.each_byte {|x| checksum ^= x }   #=> #<File:testfile>
checksum                           #=> 12

See IO#each_byte.

Scans one byte and returns it. This method is not multibyte character sensitive. See also: getch.

s = StringScanner.new('ab')
s.get_byte         # => "a"
s.get_byte         # => "b"
s.get_byte         # => nil

s = StringScanner.new("\244\242".force_encoding("euc-jp"))
s.get_byte         # => "\xA4"
s.get_byte         # => "\xA2"
s.get_byte         # => nil

Iterates over each byte of each file in ARGV. A byte is returned as an Integer in the range 0..255.

This method allows you to treat the files supplied on the command line as a single file consisting of the concatenation of each named file. After the last byte of the first file has been returned, the first byte of the second file is returned. The ARGF.filename method can be used to determine the filename of the current byte.

If no block is given, an enumerator is returned instead.

For example:

ARGF.bytes.to_a  #=> [35, 32, ... 95, 10]