javascript - how to remove element from session storage array when there are lot of -

i trying remove elements localstorage array. find localstorage.removeitem(key);

i couldn't understand how works because have 2 sessionstorage. okay?

i have far

var thecart = json.parse(sessionstorage.getitem("productname")); // retrieving var quantity = json.parse(sessionstorage.getitem("quantityofprod")); var prodprice = json.parse(sessionstorage.getitem("sum")); 

productname, quantityofprod , sum arrays. don't how form localstorage.removeitem select array , select element inside array. have tried

sessionstorage.removeitem("productname", json.stringify(namee));

namee variable contains element want delete inside specific sessionstorage array. doing deleting everything.

you have way:

1. read entry
2. decode json
3. remove element
4. encode json

5. update entry

   tmp = json.parse(sessionstorage.getitem("productname")); delete tmp["key remove"]; sessionstorage.setitem("productname", json.stringify(tmp)); 

done.