UI-943: Add documentation for the getFormData() method

docs/monster/ui.md

@@ -8,6 +8,7 @@ The `monster.ui` object contains different methods and objects used to easily re
 * [protectField()][protect_field]
 * [validate()][validate]
 * [wysiwyg()][wysiwyg]
+* [getFormData()][getFormData]
 
 ### Objects
 * [prettyCheck][pretty_check]
@@ -23,4 +24,5 @@ The `monster.ui` object contains different methods and objects used to easily re
 [dialog]: ui/dialog().md
 [protect_field]: ui/protectField().md
 [validate]: ui/validate().md
-[wysiwyg]: ui/wysiwyg().md
+[wysiwyg]: ui/wysiwyg().md
+[getFormData]: ui/getFormData().md

docs/monster/ui/getFormData().md

@@ -0,0 +1,21 @@
+# [monster][monster].[ui][ui].getFormData()
+
+* [Syntax](#syntax)
+* [Parameters](#parameters)
+* [Description](#description)
+
+### Syntax
+```javascript
+monster.ui.getFormData(rootNode[, delimiter, skipEmpty, nodeCallback, useIdIfEmptyName]);
+```
+
+### Parameters
+The parameters are the same than the [form2js][form2js] function.
+
+### Description
+This method is a wrapper of the form2js function. Its goal is to clean the object returned by form2js of all empty keys when the form passed as a parameter contains inputs without a `name` parameter.
+
+[monster]: ../../monster.md
+[ui]: ../ui.md
+
+[form2js]: https://github.com/maxatwork/form2js#form2js