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Challenge 1 - Write your own wc tool

This challenge corresponds to the first part of the Coding Challenges series by John Crickett https://codingchallenges.fyi/challenges/challenge-wc.

Description

The WC tool is written in wc.ts file and the index.ts is the command line version of the tool. The tool is used to count the number of words, lines, bytes and characters in a file/stdin.

Check out this Notion page to understand how I approached this challenge.

Usage

You can use ts-node to run the tool as follows:

npx ts-node index.ts [option] filename

The following options are supported:

• -w: prints the number of words in the file
• -l: prints the number of lines in the file
• -c: prints the number of bytes in the file
• -m: prints the number of characters in the file

The tool can also be used in stdin mode as follows:

cat filename | npx ts-node index.ts [option]

Run tests

To run the tests for the WC tool, go to the root directory of this repository and run the following command:

npm test src/1/

All the tests are made for LINUX environment only. If you want to run the tests in Windows environment, you can use the Git Bash terminal or Windows Subsystem for Linux (WSL).