Slightly related: I die a little inside each time I see `JSON.parse(JSON.stringify(object))` thinking about the inefficiencies involved compared to how you'd do this in a more efficient language.

There's structuredClone (https://developer.mozilla.org/en-US/docs/Web/API/Window/stru... https://caniuse.com/?search=structuredClone) with baseline support (93% of users), but it doesn't work if fields contain DOM objects or functions meaning you might have to iterate over and preprocess objects before cloning so more error-prone, manual and again inefficient?