selection.node() Returns the first (non-null) element in this selection. If the selection is empty, returns null.

local.set(node, value) Sets the value of this local on the specified node to the value, and

selection.enter() Returns the enter selection: placeholder nodes for each datum that had no corresponding DOM element in the

d3.selectAll(selector) Selects all elements that match the specified selector string. The elements will be selected

selection.text([value]) If a value is specified, sets the

selection.classed(names[, value]) If a value is specified, assigns or unassigns the specified CSS class

selection.remove() Removes the selected elements from the document. Returns this selection (the removed elements) which are

d3.event The current event, if any

d3.selection() Selects the root element, document

d3.selector(selector) Given the specified selector, returns a function which returns the first descendant of this