docs(ngClass): clarify the use of object map

diegovilar · Jun 4, 2013 · 8eb8c4a · 8eb8c4a
1 parent 4fd057e
commit 8eb8c4a
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/src/ng/directive/ngClass.js b/src/ng/directive/ngClass.js
@@ -73,7 +73,9 @@ function classDirective(name, selector) {
  * @element ANY
  * @param {expression} ngClass {@link guide/expression Expression} to eval. The result
  * of the evaluation can be a string representing space delimited class
- * names, an array, or a map of class names to boolean values.
+ * names, an array, or a map of class names to boolean values. In the case of a map, the
+ * names of the properties whose values are truthy will be added as css classes to the
+ * element.
  *
  * @example
  <example>