Function validateData

validateData(formMetaData, data): JFormErrors
JMap.Form.validateData

Returns errors for the given form id and data.

If no error validation, it returns an empty object.

The result is an object where :
- key is the attribute id
- value is the validation error message, translated in the user locale
Parameters
- formMetaData: JFormMetaData
  A JMap form's metadata
- data: JAttributeValueByName
  The form data
Returns JFormErrors
an empty object if no validation error, else an object containing error messages grouped by attribute id.
Example
```
const form = ...
 const data = {
  name: "Jack"
}
// returns {} if no error, else could returns { age: "required field" }
const errors = JMap.Form.validateData(form, data)
```