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

Doh! Sorry did that before I had had some coffee. Fixed now.

You still need to fix the initial code section.

Hi,

Thanks for your feedback - I have revised the kata so it is cookingTime.

Initial code is cookingtime but the tests expects cooking_time.

In addition, JS's naming convention uses camelCase so you should name the function cookingTime.

For loops need all three statements together like this : for (var i = 0; i < array.length; i += length).
There is also a better way for flattening nested arrays.