Get filenames recursively in a root directory

gistfile1.txt

const getListOfFiles = function (directory) {
    let files = [];

    fs.readdirSync(directory).forEach(function(filename) {
        const filePath = path.join(directory, filename);
        
        const fileStatus = fs.lstatSync(filePath);

        if (fileStatus.isFile()) {
            // Check if image
            if (hasImageExtension(filename)) {
                files.push(filePath);
            }
        } else if (fileStatus.isDirectory()) { // Being specific to avoid non directory and files, e.g. socket, fifo, etc.
            // Join results with sub directory
            files = [...files, ...getListOfFiles(filePath)];
        }
    });

    return files;
};