Connecting a JSON file to JS, how to change and overwrite?

Question

JavaScript

I need to connect a json file and run it through Javascript, change it and write it back with the changes.
Tell me how to connect the JSON file locally? How to save the changed Json file?

Answer 1

JS in the browser can't write to files. This is what JS can do in Node.
So:
1. Install a node
2. Connect the fs module
3. Read the file, make changes, write back
The node has good documentation and a fairly simple api.

Answer 2

Based on the wording of the question, you will need to read a short overview lecture on the basics of JS. I'm afraid there is no specific answer to your question that would fit in one paragraph.