Without the input value we can't know if your're right or wrong, probably wrong tho:

JavaScript Completions 9105

Take a look at some failed test:

Testing for 80352
It should work for random inputs too: expected 80532 to equal 80523

You can see that your function returned 80532 and the next bigger number with the digits of 80352 is 80523.

No problem, you could try not using sort at all.

Sort wasn't stable until recent Node's versions, so, either you find a way to make your sort stable or wait for this kata to have newer versions enabled.

You can visualize how it behaves with an older version here: https://pythontutor.com/javascript.html#mode=edit