interval mixin

gistfile1.js

function intervalMixin() {
  var intervals = [];
  
  return {
    addInterval: function (func, delay) {
      intervals.push({ func: func.bind(this), delay: delay });
    },

    startIntervals: function () {
      intervals.forEach(function (interval) {
        interval.id = setInterval(interval.func, interval.delay);
      });
    },

    stopIntervals: function () {
      intervals.forEach(function (interval) {
        clearInterval(interval.id);
      });
    },

    clearIntervals: function () {
      this.stopIntervals();
      intervals = [];
    }
  };
}