How to use the log.DEBUG function in log

/**
 * Module dependencies.
 */

var sys = require('sys');
var fs = require('fs');
var express = require('express');
var socketio = require('socket.io');
var Log = require('log');
var config = require('./config');

var log = new Log(Log.DEBUG, fs.createWriteStream('./logs/transferrings.log'));
var app = module.exports = express.createServer();

// Configuration

app.configure(function() {
  app.redirect('send', '/send');
  app.set('views', __dirname + '/views');
  app.set('view engine', 'ejs');
  //app.use(express.logger());
  app.use(express.bodyParser());
  app.use(express.methodOverride());
  app.use(express.cookieParser());
  app.use(express.session({ secret: config.server.secret }));
  app.use(app.router);
  app.use(express.static(__dirname + '/public'));
});

this.totalRequests = 0;
		this.totalTime = 0;
		this.totalErrors = 0;
		this.maxLatencyMs = 0;
		this.minLatencyMs = 999999;
		this.histogramMs = {};
		this.errorCodes = {};
		this.running = true;
		this.totalsShown = false;
		this.requestIndex = 0;
		this.requestIdToIndex = {};
		if (options.quiet) {
			log.level = Log.NOTICE;
		}
		if (options.debug) {
			log.level = Log.DEBUG;
		}
	}

}

log.timeEnd = function (label) {
  if (this.level >= Log.DEBUG) {
    console.timeEnd(label)
  }
}

log.EMERGENCY = Log.EMERGENCY
log.ALERT = Log.ALERT
log.CRITICAL = Log.CRITICAL
log.ERROR = Log.ERROR
log.WARNING = Log.WARNING
log.NOTICE = Log.NOTICE
log.INFO = Log.INFO
log.DEBUG = Log.DEBUG

module.exports = log

it('should use time and timeEnd when the level is DEBUG', () => {
    log.level = Log.DEBUG
    log.time('test')
    log.timeEnd('test')

    expect(consoleSpy.time).toHaveBeenCalledWith('test')
    expect(consoleSpy.timeEnd).toHaveBeenCalledWith('test')
  })
})

log.timeEnd = function (label) {
  if (this.level >= Log.DEBUG) {
    console.timeEnd(label)
  }
}

#!/usr/bin/env node

let Log = require('log'),
    log = new Log(Log.DEBUG),
    worldClient = require('../../server/data/map/world_client'),
    worldServer = require('../../server/data/map/world_server');

class Helper {

    constructor() {
        let self = this;

        self.width = worldServer.width;
        self.height = worldServer.height;

        self.getTileData(964, 129);
        self.getTileData(965, 129);

        self.getTileData(964, 130);
        self.getTileData(965, 130);

#!/usr/bin/env node

let Log = require('log'),
    fs = require("fs"),
    file = require('../file'),
    processMap = require('./processmap'),
    log = new Log(Log.DEBUG),
    source = process.argv[2];

function getMap() {
    if (!source)
        source = 'data/world.json';

    file.exists(source, function(exists) {
        if (!exists) {
            log.error('The file: ' + source + ' could not be found.');
            return;
        }

        fs.readFile(source, function(error, file) {
            onMap(JSON.parse(file.toString()));
        });
    });