Is there an easy solution for persisting input values?

[gouldingken]

Currently if I switch to a different "page" within the framework, all my inputs are reset to their default values. Is there a way to persist those values while the session is live - and possibly across sessions (e.g. using localStorage or a database connection)?

[Fil]

Yes I think you could use localStorage to save state (or sessionStorage if you want two browser windows to have their own separate history, which I tend to prefer); then set the initial value of fresh Inputs to the stored value, if any.

It could go like this (in two different js code blocks):

```js
const defaultColor = "#ff0000";
const color = view(Inputs.color({value: sessionStorage.getItem("color") ?? defaultColor}));
```

```js
{
  sessionStorage.setItem("color", color);
}
```

[mbostock]

I think we should add a “queryKey” option or some such that automatically does two-way synchronization with the URL. (Maybe we could do a “sessionKey” option too.)