The description says "each word contains just one character to convert the number to it" but sample tests already contain assertions where multiple numbers have to be substituted for letters.

Updated Node to v12

This isn't sorting by ASCII, it's sorting by alphabet's position.

• Node 12 should be enabled (Refer this and this for more info)

I see all the previous solutions popping up again, so this should be resolved ;-)

Author solution is cough flawed again.

Replacing it.

Yes, it seems that if the number embedded in the string is a single zero character, the tests expect you to keep the zero character in the output instead of translating it to "a". But that's not indicated anywhere in the description.

The task doesn't match the tests.

It says: '0pple' will return 'apple', so 0 is 'a', but actually I get this:

Expected: 'GtDVvB0iDCVdw',
instead got: 'GtDVvBaiDCVdw'

Approved

Fixed it myself

• Please use Test.assertEquals and not Test.expect
• Just 2 tests and no random tests?