countFiles-callbacks.js

var fs = require('fs');
var path = require('path');
var _ = require('lodash');


/** Returns the number of files in the given directory. */
var countFiles = function (dir, callback) {

    // Get all directory entries.
    fs.readdir(dir, function (err, files) {
        if (err) { callback(err); return; }
        callback(null, files.length);
    });
}

countFiles-synchronous.js

var fs = require('fs');
var path = require('path');
var _ = require('lodash');


/** Returns the number of files in the given directory. */
var countFiles = function (dir) {
    var files = fs.readdirSync(dir);
    return files.length;
};


function nodeified(dir, callback) {
    try {
        callback(null, countFiles(dir));
    }
    catch (err) {
        callback(err);
    }
}
module.exports = nodeified;