Question

I have the following array

var arr=[[10,20,30],[12,21,33],[13,23,35]];

How can I convert that array to JSON.
Desired result

myJSONarr=[
{"x":10 ,"y":20,"z":30},
{"x":12 ,"y":21,"z":33},
{"x":13, "y":23,"z":35}
];

I’m guessing I will have to define sting array

var objArray=["x","y","z"];

and do loop over these two values with the eval() function.
Any help is greatly appreciated.

Answer 1

if you use jquery:

var arr=[[10,20,30],[12,21,33],[13,23,35]],
myjson = JSON.stringify($.map(arr,function(a){return {x:a[0],y:a[1],z:a[2]}}));

http://jsfiddle.net/herostwist/yDRwh/

if you use prototype:

var myjson  = JSON.stringify([[10,20,30],[12,21,33],[13,23,35]].map(function(a){
              return {x:a[0],y:a[1],z:a[2]}}));

http://jsfiddle.net/herostwist/yDRwh/1/