Covert an input file to its binary representation

text2binary.js

/**
 * Coverts the input file to its binary representation
 * Usage: node text2binary.js myBundle.js
 */
let fs = require('fs');
const inputFile = process.argv.slice(2)[0];
const outputPath = `${inputFile}_binary.txt`;

fs.readFile(inputFile, 'utf8', (err, data) => {
    if (err) throw err;
    const noSpace = data.replace(/\s/g, '');
    const file = JSON.stringify(noSpace, null, 2);
    const binarified = text2Binary(file);
    fs.writeFileSync(outputPath, binarified, 'utf-8');
});

const text2Binary = string => {
    return string.split('').map(char => {
        return char.charCodeAt(0).toString(2);
    }).join(' ');
};