Logger with console.log and call stack in strict mode

console.log.js

const log = console.log
console.log = function logIt() {
  var stack = new Error().stack,
      callee = stack.split('\n')[3].slice(7),
      tag = '[LOG]';
  if (arguments.length > 0) {
    tag = Array.prototype.slice.call(arguments, 0)[0]
  }
  log.call(this, tag, callee)
  arguments.length > 1 && log.apply(this, arguments)
}