js recursive list files

tree.js

const path = require('path');
const fs = require('fs-extra');

/**
* @param {String} rootDirectory
* @param {String[]} exclude
* @returns {String[]}
*/
function tree(rootDirectory, exclude) {
    const getAllFiles = function (dirPath, exclude, arrayOfFiles) {
        files = fs.readdirSync(dirPath);

        arrayOfFiles = arrayOfFiles || [];

        files.forEach(function (file) {
            if (!exclude.includes(file)) {
                if (fs.statSync(dirPath + '/' + file).isDirectory()) {
                    arrayOfFiles = getAllFiles(dirPath + '/' + file, exclude, arrayOfFiles);
                } else if (!file.endsWith('.json')) {
                    arrayOfFiles.push(path.join(__dirname, dirPath, '/', file));
                }
            }
        });

        return arrayOfFiles;
    };

    const paths = getAllFiles(rootDirectory, exclude);
    return paths;
}

module.exports = tree;