I have a HTML list of about 500 items and a "filter" box above it. I started by using jQuery to filter the list when I typed a letter (timing code added later): $('#filter').keyup( function() { var jqStart = (new Date).getTime(); var search = $(this).val().toLowerCase(); var $list = $('ul.ablist > li'); $list.each( function() { if ( $(this).text().toLowerCase().indexOf(search) === -1 ) $(this).hide(); else $(this).show(); } ); console.log('Time: ' + ((new Date).getTime() - jqStart)); } ); However, there was a couple of seconds delay after typing each letter (particularly the first letter). So I thought it may be slightly quicker if I used plain Javascript (I read recently that jQuery's each function is particularly slow). Here's my JS equivalent: document.getElementById('filter').addEventListener( 'keyup', function () { var jsStart = (new Date).getTime()...
Some of the answers given here are either overcomplicated or just will not work (at least, not in all browsers). If you take a step back, you can see that the MySQL timestamp has each component of time in the same order as the arguments required by the Date() constructor.
ReplyDeleteAll that's needed is a very simple split on the string:
// Split timestamp into [ Y, M, D, h, m, s ]
var t = "2010-06-09 13:12:01".split(/[- :]/);
// Apply each element to the Date function
var d = new Date(t[0], t[1]-1, t[2], t[3], t[4], t[5]);
alert(d);
// -> Wed Jun 09 2010 13:12:01 GMT+0100 (GMT Daylight Time)
To add to the excellent Andy E answer a function of common usage could be:
ReplyDeleteDate.createFromMysql = function(mysql_string)
{
if(typeof mysql_string === 'string')
{
var t = mysql_string.split(/[- :]/);
//when t[3], t[4] and t[5] are missing they defaults to zero
return new Date(t[0], t[1] - 1, t[2], t[3] || 0, t[4] || 0, t[5] || 0);
}
return null;
}
In this way given a MySQL date/time in the form "YYYY-MM-DD HH:MM:SS" or even the short form (only date) "YYYY-MM-DD" you can do:
var d1 = Date.createFromMysql("2011-02-20");
var d2 = Date.createFromMysql("2011-02-20 17:16:00");
alert("d1 year = " + d1.getFullYear());
are you in php?
ReplyDeletevar dateString = <? echo "'2000-09-10 00:00:00';"; ?>
var myDate = new Date(dateString);
Why not do this:
ReplyDeletevar d = new Date.parseDate( "2000-09-10 00:00:00", 'Y-m-d H:i:s' );