can't loop out data from json array?

Question

I can't loop data out from response array.

$.post(myurl , function(response){
      for (var i = 0; i < response.result.length; i++) {
         alert(response.result[i]);
      }
},"json");

result of returned json array is :

{"result":["data one","data two","data three"]}

Two-Bits · Accepted Answer · 2011-07-16 08:48:05Z

1

You can iterate over an object's properties with a for each loop:

for (var prop in response) {
  alert(prop + ": " + response[prop]);
}

answered Jul 16, 2011 at 8:48

Two-Bits

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2 Comments

Two-Bits Over a year ago

Ahhh, sorry. Misread your question at first. What you have looks like it should work, as long as the json response is as you've shown. Can you link to a live example?

ericjam Over a year ago

This answered the question I wanted, basically I was getting undefined errors on a json response using for loop. Likely some data was not converted into an object.

Ashwin Krishnamurthy · Accepted Answer · 2011-07-16 12:36:25Z

0

Did u try using JSON.parse to obtain your data in the JSON object format?
Always use jslint to see if your JSON is proper, before using JSON.parse.

EDIT : In your head tag add json2.js. Go here and download it. Then whenever u have a json string like the one in your question. Just use JSON.parse(somejsonstring);

var t = '{"result":["data one","data two","data three"]}' ; //Response Text
var p = JSON.parse(t); //p.result[0] will give u "data one"

edited Jul 16, 2011 at 12:36

answered Jul 16, 2011 at 9:25

Ashwin Krishnamurthy

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2 Comments

kmith Over a year ago

How should I use JSON.parse? Could u plz write it for sample?

kmith Over a year ago

var t = '{"result":["data one","data two","data three"]}' ; //Response Text var p = JSON.parse(t); //p.result[0] will give u "data one" ya .. it works great.Thz K.A.G

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