SP.Workflow.WorkflowTemplate.autoStartChange property (sp.js)
Gets a value that specifies whether workflow associations based on this workflow template can be configured to start workflow instances automatically when an item is changed.
Applies to: apps for SharePoint | SharePoint Foundation 2013 | SharePoint Server 2013
var value =SP.Workflow.WorkflowTemplate.get_autoStartChange()
Return value
Type: Boolean