const sym = Symbol("test"); const sym2 = Symbol("not enumerable"); const src = { a: "string" }; Object.defineProperty(src, "b", { value: "not enumerable" }) Object.defineProperty(src, sym, { enumerable: true, value: "symbol" }); Object.defineProperty(src, sym2, { value: "not enumerable" }); const {...rest} = src; expect(rest[sym]).toBe("symbol"); expect(rest.a).toBe("string"); expect(Object.getOwnPropertyNames(rest)).toEqual(["a"]); expect(Object.getOwnPropertySymbols(rest)).toEqual([sym]); const { [sym]: dst, ...noSym } = src; expect(dst).toBe("symbol"); expect(noSym.a).toBe("string"); expect(Object.getOwnPropertySymbols(noSym)).toEqual([]);