this is the 3rd time i ask this question. YOU MUST USE THE SEL.JSON FILE!!!!! I need to change the vale of the json file from 1 to 10 WITHOUT PHP ! my code right now is not doing anything it can open the file but i can not read or write to it.

this is my sel.json file

{"state":[{"sel":1}]}

this is my index.html

json testing

Data Present in JSON file

Modified the Data