shifter

Test task for Wonderobe

Short text of the task

Implement a program that allows shift operations on an array. During the shift, the addition of adjacent elements occurs if they are equal.

The program interface supports the --help option, which displays a brief help text:

> node index.js --help

or shortcut:

> node index.js -h

-h | --help - displays a short help text
-n | --input=1,2,4 - user input. an array of data represented like a string with a separator. Attention! 0 in this case is not considered a power of 2. Example: 1,2,4
-i | --interactive - interactive mode of the program in which the program interacts with the user. If option is not used, program will use automatic mode in which array processing occurs without user intervention.
-z | --with_zeros - the option includes the addition of array 0 after the shift, i.e. array length does not change
-s | --separator=',' - option defines a delimiter for user input

Empty input - an empty string has been transmitted or the value is missing
Input is too small - in user input the number of elements is less than 2
Could not find separator into the input - an invalid line delimiter was sent or the delimiter is missing from the line
Found specific char - sinput contains "special" characters
Some char into the input is not a number - the input contains data other than numbers
Some number into the input not a power of 2 - the input contains numbers that are not a power of 2
Some number into the input is 0 - input contains 0