tsVSjs.js

const glob = require('glob');

const jsFiles = glob.sync('src/**/*.js');
const tsFiles = glob.sync('src/**/*.ts');
const tsxFiles = glob.sync('src/**/*.tsx');
const allTsFiles = tsFiles.concat(tsxFiles);

console.log(`There are ${jsFiles.length} .js files in the 'src' directory.`);
console.log(`There are ${allTsFiles.length} .ts/x files in the 'src' directory.`);
console.log(`${Math.round((allTsFiles.length / jsFiles.length) * 100)}% of the files are TypeScript files.`);