Get specific version using javascript

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sleeper

I am trying to download a specific version using javascript.
I use the get
node.getVersion(version_var);

And I have to assume this is right.  When I give it a valid version number  it returns an object, if I give it an invalid version number I get an error.
However, I cannot figure out how to get the actual older version of the file.
Whenever I try to get the ID or url I always get the same value as the current node.
When I call versionLabel or nodeRef I get errors about undefined values.


Does anybody know how to get the older version of a file using javascript?


Thank you.

kaynezhang

node.getVersion(version_var) return an object of  ScriptVersion.

ScriptVersion has following properties:

 nodeRef ‍

  representing the node reference of the document that was versioned.

 node ‍

representing the node as it was versioned.

 label ‍

representing the version label.