SP.FieldMultiLineText.wikiLinking property (sp.js)
Gets a value that specifies whether an implementation specific mechanism for linking wiki pages is supported.
Applies to: apps for SharePoint | SharePoint Foundation 2013 | SharePoint Server 2013
var value = SP.FieldMultiLineText.get_wikiLinking ()
Return value
Type: Boolean
Remarks
It must be false if RichText is false.