JS实现时间日期转换时间戳

日期格式：“2015-01-01 01:01:01”

方法一： 

<html>
<body>

<script type="text/javascript">

var g = '2015-01-01 01:01:01'.replace(/-/g,"/");
var d = new Date(g).getTime();
document.write(d);

</script>

</body>
</html>

方法二： 

<html>
<body>

<script type="text/javascript">

function transdate(endTime){
    var date=new Date();
    date.setFullYear(endTime.substring(0,4));
    date.setMonth(endTime.substring(5,7)-1);
    date.setDate(endTime.substring(8,10));
    date.setHours(endTime.substring(11,13));
    date.setMinutes(endTime.substring(14,16));
    date.setSeconds(endTime.substring(17,19));
    return Date.parse(date)/1000;
}
var d = transdate("2015-01-01 01:01:01");
document.write(d);

</script>

</body>
</html>