Checkpoint API reference.

README.md

@@ -24,7 +24,7 @@ If you use NPM, `npm install d3@4.0.0-alpha.2`. Otherwise, download the [latest
 * [Random Numbers](#random-numbers)
 * [Requests](#requests)
 * [Scales](#scales) ([Continuous](#continuous), [Sequential](#sequential), [Quantize](#quantize), [Ordinal](#ordinal), [Categorical](#categorical))
-* [Selections](#selections)
+* [Selections](#selections) ([Selection](#selection), [Transformation](#transformation), [Data](#data), [Events](#events), [Control](#control), [Namespaces](#namespaces))
 * [Shapes](#shapes) ([Arcs](#arcs), [Pies](#pies), [Lines](#lines), [Areas](#areas), [Curves](#curves), [Symbols](#symbols), [Stacks](#stacks))
 * [Time Formats](#time-formats)
 * [Time Intervals](#time-intervals)
@@ -442,9 +442,17 @@ Map a discrete domain to a discrete, fixed categorical color range.
 
 Transform the DOM by selecting elements and joining to data.
 
+### Selection
+
+* [d3.selection](https://github.com/d3/d3-selection#selection) - select the root document element.
 * [d3.select](https://github.com/d3/d3-selection#select) - select an element from the document.
 * [d3.selectAll](https://github.com/d3/d3-selection#selectAll) - select multiple elements from the document.
-* [d3.selection](https://github.com/d3/d3-selection#selection) - select the root document element.
+* [*selection*.select](https://github.com/d3/d3-selection#selection_select) - select a descendant element for each selected element.
+* [*selection*.selectAll](https://github.com/d3/d3-selection#selection_selectAll) - select multiple descendants for each selected element.
+* [*selection*.filter](https://github.com/d3/d3-selection#selection_filter) - filter elements based on data.
+
+### Transformation
+
 * [*selection*.attr](https://github.com/d3/d3-selection#selection_attr) - get or set an attribute.
 * [*selection*.classed](https://github.com/d3/d3-selection#selection_classed) - get, add or remove CSS classes.
 * [*selection*.style](https://github.com/d3/d3-selection#selection_style) - get or set a style property.
@@ -453,27 +461,36 @@ Transform the DOM by selecting elements and joining to data.
 * [*selection*.html](https://github.com/d3/d3-selection#selection_html) - get or set the inner HTML.
 * [*selection*.append](https://github.com/d3/d3-selection#selection_append) - create, append and select new elements.
 * [*selection*.remove](https://github.com/d3/d3-selection#selection_remove) - remove elements from the document.
+* [*selection*.sort](https://github.com/d3/d3-selection#selection_sort) - sort elements in the document based on data.
+* [*selection*.order](https://github.com/d3/d3-selection#selection_order) - reorders elements in the document to match the selection.
+
+### Data
+
 * [*selection*.data](https://github.com/d3/d3-selection#selection_data) - join elements to data.
 * [*selection*.enter](https://github.com/d3/d3-selection#selection_enter) - get the enter selection (data missing elements).
 * [*selection*.exit](https://github.com/d3/d3-selection#selection_exit) - get the exit selection (elements missing data).
 * [*selection*.datum](https://github.com/d3/d3-selection#selection_datum) - get or set element data (without joining).
-* [*selection*.filter](https://github.com/d3/d3-selection#selection_filter) - filter elements based on data.
-* [*selection*.sort](https://github.com/d3/d3-selection#selection_sort) - sort elements in the document based on data.
-* [*selection*.order](https://github.com/d3/d3-selection#selection_order) - reorders elements in the document to match the selection.
+
+### Events
+
 * [*selection*.on](https://github.com/d3/d3-selection#selection_on) - add or remove event listeners.
+* [*selection*.dispatch](https://github.com/d3/d3-selection#selection_dispatch) - dispatch a custom event.
+* [d3.event](https://github.com/d3/d3-selection#event) - the current user event, during interaction.
+* [d3.mouse](https://github.com/d3/d3-selection#mouse) - get the mouse position relative to a given container.
+* [d3.touch](https://github.com/d3/d3-selection#touch) - get a touch position relative to a given container.
+* [d3.touches](https://github.com/d3/d3-selection#touches) - get the touch positions relative to a given container.
+
+### Control
+
 * [*selection*.each](https://github.com/d3/d3-selection#selection_each) - call a function for each element.
 * [*selection*.call](https://github.com/d3/d3-selection#selection_call) - call a function with this selection.
 * [*selection*.empty](https://github.com/d3/d3-selection#selection_empty) - returns true if this selection is empty.
 * [*selection*.nodes](https://github.com/d3/d3-selection#selection_nodes) - returns an array of all selected elements.
 * [*selection*.node](https://github.com/d3/d3-selection#selection_node) - returns the first (non-null) element.
 * [*selection*.size](https://github.com/d3/d3-selection#selection_size) - returns the count of elements.
-* [*selection*.select](https://github.com/d3/d3-selection#selection_select) - select a descendant element for each selected element.
-* [*selection*.selectAll](https://github.com/d3/d3-selection#selection_selectAll) - select multiple descendants for each selected element.
-* [*selection*.dispatch](https://github.com/d3/d3-selection#selection_dispatch) - dispatch a custom event.
-* [d3.event](https://github.com/d3/d3-selection#event) - the current user event, during interaction.
-* [d3.mouse](https://github.com/d3/d3-selection#mouse) - get the mouse position relative to a given container.
-* [d3.touch](https://github.com/d3/d3-selection#touch) - get a touch position relative to a given container.
-* [d3.touches](https://github.com/d3/d3-selection#touches) - get the touch positions relative to a given container.
+
+### Namespaces
+
 * [d3.namespace](https://github.com/d3/d3-selection#namespace) - qualify a prefixed XML name, such as “xlink:href”.
 * [d3.namespaces](https://github.com/d3/d3-selection#namespaces) - the built-in XML namespaces.
 * [d3.requote](https://github.com/d3/d3-selection#requote) - quote a string for use in a regular expression.