How to parsing Json Array in Javascript?

Question

Json Array as following is easy to parse,

{
    "movieCategories": [
       "a" : "Animation",
         "b" :"Romance",
        "c" :"Science Fiction"
       "d" : "Western"
    ]
}

Now,I have a Json response as following which is stored in movies.json file.

{
    "movieCategories": [
        "Animation",
         "Romance",
        "Science Fiction",
        "Western"
    ]
}

I am not sure how to parse the above json array. Kindly help.

Thank you.

If you didn't miss the comma after `"Science Fiction"` by accident, this is not valid JSON. — nfechner, Nov 21 '11 at 12:31
You are missing a comma in your second example. Between "Science Fiction" and "Western". — Stefan, Nov 21 '11 at 12:33
Your first example is invalid - you have labels inside square brackets. — N3dst4, Nov 21 '11 at 12:34
By Mistake, I missed the comma. Kindly ignore that mistake :)..thank you — Gendaful, Nov 21 '11 at 12:43
@user515990: You should tell us how you are running things (we can't read your mind). You should also be sure you don't have tons of spelling and syntax errors on critical parts of your question — hugomg, Nov 21 '11 at 12:49

score 7 · Accepted Answer · answered Nov 21 '11 at 12:35

7

Assume

    var test = {
    "movieCategories": [
        "Animation",
         "Romance",
        "Science Fiction"
        "Western"
    ]
}

then

test.movieCategories[0] // Will be Animation

answered Nov 21 '11 at 12:35

Gfox

307
1
6

Thanks,Gfox. Is it not necessary to have key associated with this? I mean, can I directly access it like test.movieCategories[0] ? – Gendaful Nov 21 '11 at 12:41
You're welcome.Yup if keys are not specified then it is considered as usual javascript Array and you can iterate through it as you do usually ;) – Gfox Nov 21 '11 at 12:46

score 3 · Answer 2 · answered Nov 21 '11 at 12:35

3

Download json2.js from here https://github.com/douglascrockford/JSON-js Include it on your page. Use like this

jsonobj = JSON.parse(jsonstring);
jsonstring = JSON.stringify(jsonobj);

answered Nov 21 '11 at 12:35

Moe Sweet

3,683
2
34
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score 1 · Answer 3 · edited May 23 '17 at 11:43

1

According to JSLint this is invalid JSON. There is a "," missing:

{ "movieCategories": [ "Animation", "Romance", "Science Fiction", "Western" ] }

For the rest see: Is it possible to parse JSON with javascript?

edited May 23 '17 at 11:43

Community

1
1

answered Nov 21 '11 at 12:34

PiTheNumber

22,828
17
107
180

Hi, By mistake, I missed the comma. It is a valid Json. Thanks for the help. – Gendaful Nov 21 '11 at 12:42
Ok, then you can follow the link. This question comes up all the time. – PiTheNumber Nov 21 '11 at 12:45

score 1 · Answer 4 · answered Nov 21 '11 at 12:37

1

you can only use the eval like

<html>
<div>
<script language="javascript">
  var arr = '[{ "movieCategories": [ "Animation", "Romance", "Science Fiction" ,"Western" ] }]';
  var b = eval(arr)[0];
  alert(b.movieCategories);
</script>
</div>
</html>

answered Nov 21 '11 at 12:37

shenhengbin

4,236
1
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How to parsing Json Array in Javascript?

4 Answers4