Access nested JSON object where object name is always different

Question

I'm trying to access a nested JSON object from the Wikipedia API where the object name is the primary key.

Example:

{
    "pages": {
        "13595": {
        "pageid": 13595,
        "ns": 0,
        "title": "London Heathrow Airport",
        "extract": "London Heathrow Airport (IATA: LHR, ICAO: EGLL) is a major international airport in West London, England, United Kingdom."
        }
    }
}

13595 is the pageid and is always different for each page. I want to get the value of "extract".

Any Idea how? I'm using jQuery.

does the object name always equal the pageid as shown in your example? — Howard Renollet, Mar 26 '15 at 19:37
Yeah it always will be. Slightly annoying it does that, but I found a way to get it (see answer below) — Omar.Ebrahim, Mar 26 '15 at 19:39

score 1 · Answer 1 · answered Mar 26 '15 at 19:38

1

If you're sure that there'll be only one page, the following instruction returns "13595" in your example:

var json = { ... }
Object.keys(json["pages"])[0]

answered Mar 26 '15 at 19:38

lucach

43
1
6

score 1 · Accepted Answer · edited May 23 '17 at 12:28

1

I should have looked at How to access nested object in JSON returned by Wikipedia API

Solved by:

for (var id in pages){
    var extract = pages[id].extract;
    if (extract){
        $('#txt_airport_extract').text(extract);
    }
}

edited May 23 '17 at 12:28

Community

1
1

answered Mar 26 '15 at 19:38

Omar.Ebrahim

862
1
10
30

Access nested JSON object where object name is always different

2 Answers2