restore legend.legendText documentation

Changelog.md

@@ -1,7 +1,9 @@
 # 2.0 Series
 ## 2.0.0 beta 32
-* Improved implementation of alignYAxes, by Mohamed Gazal and Gordon Woodhull ([#1033](https://github.com/dc-js/dc.js/pull/1033))
 * elasticY and elasticX did not work if all values were negative (coordinate grid and row charts, respectively), by Sebastian Gröhn ([#879](https://github.com/dc-js/dc.js/issues/879) / [#1156](https://github.com/dc-js/dc.js/pull/1156))
+* Improved implementation of alignYAxes, by Mohamed Gazal and Gordon Woodhull ([#1033](https://github.com/dc-js/dc.js/pull/1033))
+* Example of downloading the table data as it's formatted.
+* `legend.legendText` documentation was missing.
 
 ## 2.0.0 beta 31
 * Brush was sometimes not displaying, fix by Paul Briton ([#1134](https://github.com/dc-js/dc.js/issues/1134))

src/legend.js

@@ -250,26 +250,30 @@ dc.legend = function () {
     };
 
     /**
-    #### .legendText([legendTextFunction])
-    Set or get the legend text function. The legend widget uses this function to render
-    the legend text on each item. If no function is specified the legend widget will display
-    the names associated with each group.
-
-    Default: dc.pluck('name')
-
-    ```js
-    // create numbered legend items
-    chart.legend(dc.legend().legendText(function(d, i) { return i + '. ' + d.name; }))
-
-    // create legend displaying group counts
-    chart.legend(dc.legend().legendText(function(d) { return d.name + ': ' d.data; }))
-    ```
-    **/
-    _legend.legendText = function (_) {
+     * Set or get the legend text function. The legend widget uses this function to render the legend
+     * text for each item. If no function is specified the legend widget will display the names
+     * associated with each group.
+     * @method legendText
+     * @memberof dc.legend
+     * @instance
+     * @param  {Function} [legendText]
+     * @return {Function}
+     * @return {dc.legend}
+     * @example
+     * // default legendText
+     * legend.legendText(dc.pluck('name'))
+     *
+     * // create numbered legend items
+     * chart.legend(dc.legend().legendText(function(d, i) { return i + '. ' + d.name; }))
+     *
+     * // create legend displaying group counts
+     * chart.legend(dc.legend().legendText(function(d) { return d.name + ': ' d.data; }))
+     **/
+    _legend.legendText = function (legendText) {
         if (!arguments.length) {
             return _legendText;
         }
-        _legendText = _;
+        _legendText = legendText;
         return _legend;
     };