Daniel Tschinder 47da5cf75a
Correctly transform spreads to use proper concat method (#9108)
* Correctly transform spreads to use proper concat method

* Add tests to ensure array spread clones elements
2018-12-13 23:24:43 -08:00

8 lines
137 B
JavaScript

// test that toConsumableArray clones the array.
const arr = [];
const foo = () => arr;
const x = [...foo()];
expect(x).not.toBe(arr);