Search code examples
javascriptgoogle-chrome-extensiongoogle-closure-library

Typecasting in Javascript / google closure library

I am passing a complex object consisting of goog.structs.Set from my content script to background page through chrome.extension.SendMessage API. On the other side, this goog.structs.Set is received as an Object.
How can I typecast it back to goog.structs.Set so that I can call various methods on it?

Solution

  • See http://developer.chrome.com/extensions/messaging.html, you can only pass JSON using chrome.extension.SendMessage.

    Personally, I use a simple object as a set and avoid goog.structs.Set:

    var MySet = Object.create(null);

    If use must use goog.structs.Set, you will need to serialize and deserialize it to JSON.