javascript - How to access an object literal property from another property? -

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this incredibly simple , google-fu not strong enough. apologies if duplicate.

consider following object literal:

var config = {     url: 'http://google.com',     message: 'you must go <a href="' + url + '">google</a> search!' };

i error saying url not defined. how access url element message element?

i think can wrap config object, e.g.

var config = (function() {   var _url = 'http://google.com';   return {     url : _url,     message : 'you must go <a href="' + _url + '">google</a> search!'   } })();

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