Здравейте, написах кода за задачата Array Manipulations от лекцията за Arrays Advanced в Fundamentals JS. Кодът работи в Visual Studio Code, но Джъдж ми дава 60/ 100. Може ли да ми подскажете къде е грешката?

https://pastebin.com/rqAnfxhp

Условието на задачата е следното:

Write a function that manipulates an array of numbers. 

• Add {number}: add a number to the end of the array

• Remove {number}: remove number from the array

• RemoveAt {index}: removes number at a given index

• Insert {number} {index}: inserts a number at a given index

Note: All the indices will be valid!

Print the final state of the array (separated by single space).

The input comes as an array of strings. First element will be a string containing the array to manipulate. Every other command you receive will also be a string.

The output is the manipulated array printed on the console on a single line, separated by space.