Save data to connected bangle.js on custom page

Ahh, so you have two issues I think...

If you try this as an example in the Web Browser:

const data = { txtTest1: 1, txtTest2: 2 };
console.log(`require("Storage").writeJSON("timerdat.json",${data})`);

You get:

require("Storage").writeJSON("timerdat.json",[object Object])

So what you actually need is to convert the object to JSON first:

const data = { txtTest1: 1, txtTest2: 2 };
console.log(`require("Storage").writeJSON("timerdat.json",${JSON.stringify(data)})`);

However, the custom app page doesn't have anything to communicate with a Bangle.js at the moment. However nothing stops you from sending whatever data you want - that's what the custom page is for...

For instance in https://github.com/espruino/BangleApps/blob/master/apps/beer/beercompass.html#L203

You just do:

        sendCustomizedApp({
          storage:[
            {name:"timerdat.json", content:JSON.stringify(data)}
          ]
        });