JavaScript json value

Question

I have a JSON var response (See below) but I can't retreive the value of "reputation" using response.users[0].reputation. I am in Dashcode and it says in error Result of expression response.users[unknown] is not an object. What is the correct syntax?

edit: The variable is dynamically loaded from a XMLHttpRequest. A static var with same json is working.

Andrew Orsich · Accepted Answer · 2011-04-03 10:14:34Z

3

I guess from XMLHttpRequest you recieve string but not json object, so you need parse it first in order to get json object, for example using JSON.Parse or jQuery.parseJSON and response.users[0].reputation should work.

edited Apr 3, 2011 at 10:14

answered Apr 3, 2011 at 10:09

Andrew Orsich

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3 Comments

Andrew Orsich Over a year ago

@umar: I've added references to my answer.

yolo Over a year ago

thx - this is working var res = JSON.parse(response); and then res.users[0].reputation

Andrew Orsich Over a year ago

@umar: Cool, but be care before JSON.Parse may not worк in all browsers. I usual copy JSON.Parse code and paste in my own js file. It just a few rows..

Oliver Moran · Accepted Answer · 2011-04-03 09:56:13Z

3

The JSON is fine. I just checked it and "response.users[0].reputation". (Second pair of eyes and all that.)

I would be more concerned about the "unknown" in "response.users[unknown]". It doesn't look like you are requesting the 0th index of the array "users". Something's going wrong there.

answered Apr 3, 2011 at 9:56

Oliver Moran

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yolo Over a year ago

The variable is dynamically loaded from a XMLHttpRequest

Timon. Z · Accepted Answer · 2011-04-03 09:57:45Z

1

Personnally when i test the syntax of your Json, it is correct : http://www.jsonlint.com

I have just deleted the comment "//need to get its value".

answered Apr 3, 2011 at 9:57

Timon. Z

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Comments

Billy Moon · Accepted Answer · 2011-04-03 09:58:33Z

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Your code works for me as you have done it. Maybe you are not assigning the variable correctly (var response = {"total": 1, etc...) or have a typo somewhere

answered Apr 3, 2011 at 9:58

Billy Moon

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1 Comment

yolo Over a year ago

The variable is dynamically loaded from a XMLHttpRequest

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