d3.local() Declares a new local variable. For example: var

selection.exit() Returns the exit selection: existing DOM elements in the selection for which no new datum was found. The exit

selection.filter(filter) Filters the selection, returning a new selection that contains only the elements for which

selection.on(typenames[, listener[, capture]]) Adds or removes a listener to each selected element

selection.append(type) If the specified type is a string, appends a new element of this type (tag name) as

d3.customEvent(event, listener[, that[, arguments]]) Invokes the specified listener, using the

local.toString() Returns the automatically-generated identifier for this local. This is the name of the property that is used

selection.select(selector) For each selected element, selects the first descendant element that matches the specified

d3.select(selector) Selects the first element that matches the specified selector string. If no elements match the

local.remove(node) Deletes this local’s value from the specified node and returns its previous value. Returns