utilise/log.js

Lean JavaScript Utilities as Micro-libraries

var is = require('./is')
  , to = require('./to')
  , owner = require('./owner')

module.exports = function log(ns){
  return function(d){
    if (!owner.console || !console.log.apply) return d;
    is.arr(arguments[2]) && (arguments[2] = arguments[2].length)
    var args = to.arr(arguments)
      , prefix = '[log][' + (new Date()).toISOString() + ']' + ns

    args.unshift(prefix.grey ? prefix.grey : prefix)
    return console.log.apply(console, args), d
  }
}