Easy way to convert a Javascript array to a JSON string?

[harjanto]

Is there an easy way to convert a Javascript array to a JSON string equivalent of the array?

Assume the array is comprised of strings

Thanks for the help

[mic2100]

go check this page out it will show you some examples of using JSON objects in JavaScript.

http://www.json.org/js.html

[Kor]

What do you mean by JSON string? A string is a string. Period. To convert an array to a string is enough to use the join() method

[rnd me]

he means a string that evals into an array.

[1,2,3,false,"hello"].toSource() works perfectly in firefox...

use .toJSONString() in the library floating around the page referred to above for cross browser compat.

[kaitana]

I searched a lot for this .. could not find it.

so I would try this:

checkIfMultiDimentional = function(arr)
{
for(var item in arr)
{
if(typeof(arr[item]) == 'object') { return true; }
}
return false;
}
myJsonify = function(thing, level)
{
var jsonString = "";
if(!level) { level = 0; }
var start;
if(typeof(thing) == 'object') {
if(checkIfMultiDimentional(thing))
{
start = 0;
for(var item in thing)
{
var value = thing[item];
if(start > 0) { jsonString += ','; }

if(value.substring) { jsonString += item+":"+value; }
else { jsonString += "\""+item+"\":{"+myJsonify(value, level+1)+"}"; }
start++;
}
}
else
{
start = 0;
for(var item in thing)
{
if(start > 0){ jsonString +=','; }
jsonString += "\""+item+"\":"+thing[item];
start++;
}

return jsonString;
}
}
else { jsonString = thing; }
return jsonString;
}

hope this helps everyone :)

[kaitana]

Usage

var jsonstr = "{"+myJsonify( multiDimentionalArray )+"}";
//alert(jsonstr);

var facUrl = "/factoryajax?json="+jsonstr;