javascript中的小技巧

<script>
	function get_unix_time(dateStr)
{
    var newstr = dateStr.replace(/-/g,‘/‘); 

    var date =  new Date(newstr); 
    var time_str = date.getTime().toString();
    return time_str/1000;
}
console.log("1399479731")
console.log(get_unix_time("2014-12-31"))
console.log(get_unix_time("2015-02-08 00:22:11"))
</script>