Get Length of json Data

Question

i have this json data and i want to get length of this json data and also of css

my json data is shown here

jso({tag:"div",css:{backgroundColor:"red"},html:"abc"})

i have pass this in function

 function jso(data){
    alert(data.length)
}

What do you mean by "length"? How many characters are in it? Is this stored in a string? — James Montagne, Apr 13 '12 at 14:06
http://stackoverflow.com/questions/126100/how-to-efficiently-count-the-number-of-keys-properties-of-an-object-in-javascrip — James Montagne, Apr 13 '12 at 14:09

score 1 · Answer 1 · answered Apr 13 '12 at 14:09

1

Your JSON is not a valid JSON object

{
  "tag": "div",
  "css": {
     "backgroundColor":"red"
  },
  "html":"abc"
}

However proper JSON object don't have a length attribute, so you need to iterate over them to calculate the length.

answered Apr 13 '12 at 14:09

GillesC

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score 1 · Answer 2 · answered Apr 13 '12 at 14:13

i know what u mean u just need to loop over your object with a counter variable

var x = {tag:"div",css:{backgroundColor:"red"},html:"abc"}

function objectLength(obj){

var counter = 0;

for(var i in obj)
{
counter +=1;
}
return counter
}

use it like this

alert(objectLength(x))

score 0 · Accepted Answer · answered Apr 13 '12 at 14:16

To iterate over the data using jQuery counting how many iterations you did do the following:

var data = {tag:"div",css:{backgroundColor:"red"},html:"abc"};

var count = 0;
$.each(data, function(key, value) {
    count++;
});

See jsFiddle here.

To iterate over the data using JavaScript only counting how many iterations you did do the following:

var data = {tag:"div",css:{backgroundColor:"red"},html:"abc"};

var count = 0;
var key;
for(key in data)
{
    var value = data[key];
    count++;
}

See jsFiddle here.

Get Length of json Data

3 Answers3