Simple Javascript to properly add keywords to open document (xmp dc:subject)

[Jaxn]

anybody have javascript code to simply add keywords to the open document from within an action? this.info.keywords adds all delimited words as a single string, so I'm looking for code to set the XMP property dc:subject with a list of words. thanks!

[Thom Parker]

Example #3 in the doc.metadata entry of the Acrobat JavaScript reference provides all the code you need to properly modify the XMP. 

Acrobat DC SDK Documentation

[Jaxn]

thank you. this is helpful, but I'm not having much success in modifying this example to set the dc:subject bag array. are you aware of an example that specifically sets the keyword metadata correctly, since setting this.info.keywords does not work like I would have hoped?

thanks again.