Results for: "String#[]"

Puts data onto the table.

Set a Row by Its Integer Index

• Form: table[n] = row, n an Integer, row a CSV::Row instance or an Array of fields.

• Access mode: :row or :col_or_row.

• Return value: row.

If the row exists, it is replaced:

source = "Name,Value\nfoo,0\nbar,1\nbaz,2\n"
table = CSV.parse(source, headers: true)
new_row = CSV::Row.new(['Name', 'Value'], ['bat', 3])
table.by_row! # => #<CSV::Table mode:row row_count:4>
return_value = table[0] = new_row
return_value.equal?(new_row) # => true # Returned the row
table[0].to_h # => {"Name"=>"bat", "Value"=>3}

With access mode :col_or_row:

table.by_col_or_row! # => #<CSV::Table mode:col_or_row row_count:4>
table[0] = CSV::Row.new(['Name', 'Value'], ['bam', 4])
table[0].to_h # => {"Name"=>"bam", "Value"=>4}

With an Array instead of a CSV::Row, inherits headers from the table:

array = ['bad', 5]
return_value = table[0] = array
return_value.equal?(array) # => true # Returned the array
table[0].to_h # => {"Name"=>"bad", "Value"=>5}

If the row does not exist, extends the table by adding rows: assigns rows with nil as needed:

table.size # => 3
table[5] = ['bag', 6]
table.size # => 6
table[3] # => nil
table[4]# => nil
table[5].to_h # => {"Name"=>"bag", "Value"=>6}

Note that the nil rows are actually nil, not a row of nil fields.

Set a Column by Its Integer Index

• Form: table[n] = array_of_fields, n an Integer, array_of_fields an Array of String fields.

• Access mode: :col.

• Return value: array_of_fields.

If the column exists, it is replaced:

source = "Name,Value\nfoo,0\nbar,1\nbaz,2\n"
table = CSV.parse(source, headers: true)
new_col = [3, 4, 5]
table.by_col! # => #<CSV::Table mode:col row_count:4>
return_value = table[1] = new_col
return_value.equal?(new_col) # => true # Returned the column
table[1] # => [3, 4, 5]
# The rows, as revised:
table.by_row! # => #<CSV::Table mode:row row_count:4>
table[0].to_h # => {"Name"=>"foo", "Value"=>3}
table[1].to_h # => {"Name"=>"bar", "Value"=>4}
table[2].to_h # => {"Name"=>"baz", "Value"=>5}
table.by_col! # => #<CSV::Table mode:col row_count:4>

If there are too few values, fills with nil values:

table[1] = [0]
table[1] # => [0, nil, nil]

If there are too many values, ignores the extra values:

table[1] = [0, 1, 2, 3, 4]
table[1] # => [0, 1, 2]

If a single value is given, replaces all fields in the column with that value:

table[1] = 'bat'
table[1] # => ["bat", "bat", "bat"]

Set a Column by Its String Header

• Form: table[header] = field_or_array_of_fields, header a String header, field_or_array_of_fields a field value or an Array of String fields.

• Access mode: :col or :col_or_row.

• Return value: field_or_array_of_fields.

If the column exists, it is replaced:

source = "Name,Value\nfoo,0\nbar,1\nbaz,2\n"
table = CSV.parse(source, headers: true)
new_col = [3, 4, 5]
table.by_col! # => #<CSV::Table mode:col row_count:4>
return_value = table['Value'] = new_col
return_value.equal?(new_col) # => true # Returned the column
table['Value'] # => [3, 4, 5]
# The rows, as revised:
table.by_row! # => #<CSV::Table mode:row row_count:4>
table[0].to_h # => {"Name"=>"foo", "Value"=>3}
table[1].to_h # => {"Name"=>"bar", "Value"=>4}
table[2].to_h # => {"Name"=>"baz", "Value"=>5}
table.by_col! # => #<CSV::Table mode:col row_count:4>

If there are too few values, fills with nil values:

table['Value'] = [0]
table['Value'] # => [0, nil, nil]

If there are too many values, ignores the extra values:

table['Value'] = [0, 1, 2, 3, 4]
table['Value'] # => [0, 1, 2]

If the column does not exist, extends the table by adding columns:

table['Note'] = ['x', 'y', 'z']
table['Note'] # => ["x", "y", "z"]
# The rows, as revised:
table.by_row!
table[0].to_h # => {"Name"=>"foo", "Value"=>0, "Note"=>"x"}
table[1].to_h # => {"Name"=>"bar", "Value"=>1, "Note"=>"y"}
table[2].to_h # => {"Name"=>"baz", "Value"=>2, "Note"=>"z"}
table.by_col!

If a single value is given, replaces all fields in the column with that value:

table['Value'] = 'bat'
table['Value'] # => ["bat", "bat", "bat"]

Stores value v at key in the GW

Set configuration option key to value.

Set key to value in database.

value will be converted to YAML before storage.

See store for more information.

Associates the given value with the given key.

If the given key exists, replaces its value with the given value; the ordering is not affected.

Associates the given value with the given key

The reference to key is weak, so when there is no other reference to key it may be garbage collected.

If the given key exists, replaces its value with the given value; the ordering is not affected

Sets the value for the case-insensitive key to val, overwriting the previous value if the field exists; see Fields:

req = Net::HTTP::Get.new(uri)
req['Accept'] # => "*/*"
req['Accept'] = 'text/html'
req['Accept'] # => "text/html"

Note that some field values may be set via convenience methods; see Setters.

Create a new InterpolatedStringNode node

Create a new InterpolatedXStringNode node

Adds a post-installs hook that will be passed a Gem::DependencyInstaller and a list of installed specifications when Gem::DependencyInstaller#install is complete

Returns the list of Modules nested at the point of call.

module M1
  module M2
    $a = Module.nesting
  end
end
$a           #=> [M1::M2, M1]
$a[0].name   #=> "M1::M2"

Sets the ordering; see Ordering; returns the new ordering.

If the given ordering is PERMUTE and environment variable POSIXLY_CORRECT is defined, sets the ordering to REQUIRE_ORDER; otherwise sets the ordering to ordering:

options = GetoptLong.new
options.ordering == GetoptLong::PERMUTE # => true
options.ordering = GetoptLong::RETURN_IN_ORDER
options.ordering == GetoptLong::RETURN_IN_ORDER # => true
ENV['POSIXLY_CORRECT'] = 'true'
options.ordering = GetoptLong::PERMUTE
options.ordering == GetoptLong::REQUIRE_ORDER # => true

Raises an exception if ordering is invalid.

Returns the binding associated with prc.

def fred(param)
  proc {}
end

b = fred(99)
eval("param", b.binding)   #=> 99

Return the generated binding object from event.

Note that for :c_call and :c_return events, the method will return nil, since C methods themselves do not have bindings.

Returns a Binding object, describing the variable and method bindings at the point of call. This object can be used when calling Binding#eval to execute the evaluated command in this environment, or extracting its local variables.

class User
  def initialize(name, position)
    @name = name
    @position = position
  end

  def get_binding
    binding
  end
end

user = User.new('Joan', 'manager')
template = '{name: @name, position: @position}'

# evaluate template in context of the object
eval(template, user.get_binding)
#=> {:name=>"Joan", :position=>"manager"}

Binding#local_variable_get can be used to access the variables whose names are reserved Ruby keywords:

# This is valid parameter declaration, but `if` parameter can't
# be accessed by name, because it is a reserved word.
def validate(field, validation, if: nil)
  condition = binding.local_variable_get('if')
  return unless condition

  # ...Some implementation ...
end

validate(:name, :empty?, if: false) # skips validation
validate(:name, :empty?, if: true) # performs validation

Returns help string of OLE method. If the help string is not found, then the method returns nil.

tobj = WIN32OLE_TYPE.new('Microsoft Internet Controls', 'IWebBrowser')
method = WIN32OLE_METHOD.new(tobj, 'Navigate')
puts method.helpstring # => Navigates to a URL or file.

Returns help string.

tobj = WIN32OLE_TYPE.new('Microsoft Internet Controls', 'IWebBrowser')
puts tobj.helpstring # => Web Browser interface

Create a new StringNode node

Create a new XStringNode node

Returns true if the given instance variable is defined in obj. String arguments are converted to symbols.

class Fred
  def initialize(p1, p2)
    @a, @b = p1, p2
  end
end
fred = Fred.new('cat', 99)
fred.instance_variable_defined?(:@a)    #=> true
fred.instance_variable_defined?("@b")   #=> true
fred.instance_variable_defined?("@c")   #=> false

Returns true if and only if the scan pointer is at the beginning of the line.

s = StringScanner.new("test\ntest\n")
s.bol?           # => true
s.scan(/te/)
s.bol?           # => false
s.scan(/st\n/)
s.bol?           # => true
s.terminate
s.bol?           # => true

Is this handler a streaming handler?

Create a new InstanceVariableAndWriteNode node

Create a new InstanceVariableOperatorWriteNode node