javascript - JSON Object return undefined -

here code of jquery alerts undefined.

i need pass actual_price or base_price in variable , gives the desired result when pass like:

parsed.test[indx].base_price  

can tell me how can use variable? in advance

example

var data = '{"test":[                  {"base_price" : "10"},                  {"actual_price" : "20"}                ]         }'; var parsed = json.parse(data); var indx = 1; var str = 'actual_price'; alert(parsed.test[indx].str); 

you need bracket notation when trying property variable:

alert(parsed.test[indx][str]);