js工具函数《转载收藏》

1.等待所有图片加载

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

var imgObjs = [], 　　 count = 0; rotate.prizeTotal = prizes.length;//图片总数 var timer = setInterval(function() {       if (count == rotate.prizeTotal ) {         clearInterval(timer);                            //加载后执行的回调函数     } }, 50); for(var i = 0;i < prizes.length; i++){     var img = new Image();     img.src = prizes[i].prize_icon; //prizes数组的prize_icon存放图片的地址     imgObjs.push(img);      img.onload = function(){         count++;            }   }

2.js获取服务器时间

1 2 3

var timstamp = new Date().valueOf(); var systemTime = new Date($.ajax({url:"?t="+timstamp,async: false}).getResponseHeader("Date")); return systemTime.valueOf();

3.获取当前时间yyyymmdd格式

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

//获取当前时间yyyymmdd格式 var CurrentDate = ""; var day = new Date(); var Year = day.getFullYear(); var Month = day.getMonth()+1; var Day = day.getDate(); CurrentDate += Year; if (Month >= 10 ){     CurrentDate += Month; } else{     CurrentDate += "0" + Month; } if (Day >= 10 ){     CurrentDate += Day ; } else{     CurrentDate += "0" + Day ; }