cli-grafith-is/cli.js

This is a cli for a lib to know if a number is even. (is a joke with the brazilian band: Grafith)

const is = require('grafith-is');
const input = process.argv.slice(2);
const operation = input.slice(-1)[0];
const pkg = require('./package.json');

if (operation === '-v' || operation === '--version') {
	console.log(`grafith-is: ${pkg.version}`);
}
else if (operation === '-h' || operation === '--help' || operation === 'grafith-is') {
console.log(`
  Usage: grafith-is <number>
  Description: ${pkg.description}
  Options:\n
     -h,  --help         output usage information
     -v,  --version      output the version number`);
} else {
	console.log(`${is(Number(input), () => {return;}, () => {return;})}`);
}