Vertical Slashes solution in node

verticalSlashes.js

#!/usr/bin/env node
const input = process.argv.slice(2);
const slashes = String.raw`${input[0]}`;

let output = "";
const verticalSlashes = (count, input) => {
  if (input.length === 0) return "";
  const currSlash = input[0]
  switch (currSlash) {
    case "/":
        newCount = count === 0 ? 0 : count - 1
        output = genOutput(newCount, currSlash)
        return output + verticalSlashes(newCount, input.slice(1, input.length));
    case "\\":
        output = genOutput(count, currSlash)
        return output + verticalSlashes(count + 1, input.slice(1, input.length));
    default:
        output = genOutput(count, currSlash)
        return output + verticalSlashes(count + 1, input.slice(1, input.length));
  }
};

const genOutput = (count, slash) => {
    return " ".repeat(count) + slash + "\n";
}

console.log(verticalSlashes(0, slashes));