DataFrame.copy() does not make a deep copy of the data.

[FunkMonkey]

Describe the bug DataFrame.copy() does not make a deep copy of the data, only a shallow copy!

The reason is the spread operation in copy(), which is used instead of a proper deep copy.

To Reproduce

const orig = new DataFrame(...);
const copy = orig.copy();
console.log(copy.values === orig.values); // logs false!
console.log(copy.values[0] === orig.values[0]); // logs true!

Expected behavior In the example above, the second console log should log false.

[nholmes3]

I am having the same problem. I am currently getting around this with:

const copy = new dfd.DataFrame(dfd.toJSON(original));

although it would of course be preferable if the copy function behaved as documented :)

[SamuelNoB]

Almost One year later and this issue has not been fixed. Thanks @nholmes3 for te workaround!!