javascript-debugger

var _debugger = (function (func) {
    var locked = false

    return function () {
      if (locked) return
      locked = true
      var args = Array.prototype.slice.call(arguments)
      func(function () {
        locked = false
        return args
      })

    }
  })(function (res) {
    setTimeout(function () {
      console.log.apply(console, res())
    }, 3000)
  });