A JS date formatting algorithm example_javascript skills

复制代码 代码如下:

function dateFormat(date, format) {
var o = {
"M ": date.getMonth() 1, //month
"d ": date.getDate(), //day
"h ": date.getHours(), //hour
"m ": date.getMinutes(), //minute
"s ": date.getSeconds(), //second
"q ": Math.floor((date.getMonth() 3) / 3), //quarter
"S": date.getMilliseconds() //millisecond
};

//把yyyy替换成具体的年份
if (/(y )/.test(format)) {
format = format.replace(RegExp.$1, (date.getFullYear() "").substr(4 - RegExp.$1.length));
}

for (var k in o) {
if (new RegExp("(" k ")").test(format)) {
format = format.replace(RegExp.$1, RegExp.$1.length == 1 ? (("000" o[k]).substr(("" o[k]).length)) : ("00" o[k]).substr(("" o[k]).length));
}
}
return format;
}