jquery - JSON.stringify not display properly, while use multiple javascript object -

i have use generate javascript multiple object based page result, convert json string. json.stringify not display properly. don't know why display this. have added example of coding

var sample_object = []; var sub_array = []; sub_array["type"] = 'i'; sample_object.push(sub_array);  console.log(sample_object); console.log(json.stringify(sample_object)); 

result :-

[array[0]]     0: array[0]         length: 0         type: "i"_         _proto__: array[0]         length: 1__proto__:         array[0] 

json.stringify output

 [[]] 

thanks in advance!

it's because can't have named arguments in array. need change sub_array object. note variable have named sample_object array. here's working version appropriately named variables:

var sample_array = []; var sub_object = {}; sub_object["type"] = 'i'; sample_array.push(sub_object);  console.log(sample_array); console.log(json.stringify(sample_array)); // = '[{"type":"i"}]' 

example fiddle

you can shorten first 4 lines this:

var sample_array = [{ type: 'i' }];