impromptu coding challenge

Setup

Download or clone this repository and run yarn install to install the dependencies.

Problem 1

Included in this assignment is a file named `fileApi.ts. It contains the following functions:

function moveFile(source: string, destination: string): boolean;
function copyFile(source: string, destination: string): boolean;
function fileExists(path: string): boolean;
function deleteFile(path: string): boolean;

Your task is to use this API to write a function that creates backups for a file. The backup should have the same name as the original file, but with a numeric suffix. Eg. backing up the file foo.txt should create foo.txt.1. However, if foo.txt.1 already exists, it should be moved to foo.txt.2. If foo.txt.2 exists it should also renamed to foo.txt.3, and so on.

The function should take the name of the file to backup as an argument, and return true if the backup was successful, false otherwise.

Start by editing yourCode.ts and writing your function in the space provided.

You can test your code by running yarn test from the command line.

Assessment Criteria (as suggested by copilot)

• Correctness
• Readability
• Maintainability
• Efficiency
• Testability
• Documentation
• Code style