执行某个函数n次并有一定时间间隔

clock.js

function clock(func,times,timeout){
    if(!timeout||parseInt(timeout)===NaN){
        timeout=100;
    }
    var _counter=0;
    function _(){
        func();
        _counter++;
        if(_counter<times){
            setTimeout(function(){
                _();
            },timeout);
        }
       
    }
   _();
}

clockWithIndex.js

function clockWithIndex(func,times,timeout){
    if(!timeout||parseInt(timeout)===NaN){
        timeout=100;
    }
    func(0);
    var _counter=1;
    var _p=setInterval(function(){
      func(_counter);
      _counter++;
      if(_counter>=times){
        clearInterval(_p);
      }
    },timeout);
}