I think it's better to do it this way
https://www.codewars.com/kata/reviews/579e25473f161c09730000da/groups/65b28fc38f45d80001749cd3

Same. Please fix it.

Hi, although i can pass all the test cases, the submit button test wont run correctly and this is what I am getting: (javascript version )

/runner/lib/shovel.js:129
buffer.stdout.push(data.toString());
^

TypeError: buffer.stdout.push is not a function
at Socket. (/runner/lib/shovel.js:129:27)
at emitOne (events.js:96:13)
at Socket.emit (events.js:188:7)
at readableAddChunk (_stream_readable.js:172:18)
at Socket.Readable.push (_stream_readable.js:130:10)
at Pipe.onread (net.js:535:20)