CODEWITHSUNDEEP
javascriptjqueryjson
Prasad
Prasad

Reputation: 45

$.each throwing error : Cannot use 'in' operator to search for '37' in

I have a JSON Object like below :

var data = "{'key1' : 'value1', 'key2' : 'value2'}";

As it is in JSON format, no parsing required, so I just want to iterate the object using $.each as below:

 $.each(data, function(index, value) {
   alert(index + ": " + value);
 });

It is throwing a console error 

 Uncaught TypeError: Cannot use 'in' operator to search for '37' in {'key1' : 'value1', 'key2' : 'value2'}(…)

I don't have any idea of what's going wrong. What is it?

Upvotes: 1

Views: 1628

Answers (3)

Piyush.kapoor
Piyush.kapoor

Reputation: 6803

Use this code:

 $.each(JSON.parse(data), function(index, value) {
   alert(index + ": " + value);
 });

Upvotes: 0

PratikSatikunvar
PratikSatikunvar

Reputation: 181

You just need to change the way value assigned to data variable to something like below:

var data = {key1 : 'value1', key2 : 'value2'};

in place of 

var data = "{'key1' : 'value1', 'key2' : 'value2'}";

Upvotes: 3

Subash
Subash

Reputation: 230

It is not a valid json. so that it throws error.

$(document).ready(function() {

  var data = {};
  data.key1 = "value1";
  data.key2 = "value2";

  $.each(data, function(index, value) {
      alert(index + ": " + value);
      });
 });

Demo : https://jsfiddle.net/0d7st5q7/

Upvotes: 1

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