javascript - Parse JSON object with numeric value as type -

i new json , trying understand how traverse structure query in javascript. want fullurl value.

i can manage query.pages not sure when have navigate "4187783".

i been looking around solution while. appreciate help!

{  "batchcomplete":"",  "query":{   "pages":{    "418783":{     "pageid":418783,     "ns":0,     "title":"san francisco lgbt community center",     "contentmodel":"wikitext",     "pagelanguage":"en",     "touched":"2015-09-21t09:58:52z",     "lastrevid":675179151,     "length":2449,     "fullurl":"https://en.wikipedia.org/wiki/san_francisco_lgbt_community_center"    }   }  } } 

i can manage query.pages not sure when have navigate "4187783".

query.pages["4187783"]

for fullurl: query.pages["4187783"].fullurl