What is the method for dynamically updating and showcasing a JSON file upon the click of a button?

I'm currently developing an add-on that will display a panel with checkboxes and a save button when a toolbar button is clicked. The goal is to allow users to select checkboxes, then save the selected data in a JSON file that can be accessed and updated even after restarting the browser. The main question I have is whether the JSON file should be saved in the file system or local storage. Any guidance on this issue would be greatly appreciated! Please let me know if you need more information. Below is the addonScript I am using:

var self = require('sdk/self');
var data = require("sdk/self").data;
var text_entry = require("sdk/panel").Panel({
  contentURL: data.url("CheckboxAddon.html"),
  //contentScriptFile: data.url("my-script.js")
});

// Create a button to show the panel
require("sdk/ui/button/action").ActionButton({
  id: "show-panel",
  label: "Show Panel",
  icon: {
    "16": "./star-icon.png",
  },
  onClick: handleClick
});

// Show the panel when the user clicks the button.
function handleClick(state) {
  text_entry.show();
}
text_entry.on("show", function() {
  text_entry.port.emit("show");
});
text_entry.port.on("text-entered", function (text) {
  console.log(text);
  text_entry.hide();
});

Answer №1

Remember that JSON is a subset of javascript, meaning you can write a javascript object that is also valid JSON. It's unlikely you'll need to worry about this in your case. To achieve the desired effect, simply input your data into

dataString = JSON.stringify(data)
or
dataString = JSON.stringify(data, null, "\t")
for a formatted JSON look. Conversely, use JSON.parse(dataString) to convert a string into a javascript object.

Refer to the json.org documentation as a guide for creating JSON objects.

The MDN documentation provides helpful examples, specifically in the methods section for JSON.stringify and JSON.parse.

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