Skip to main content

How to count elements and take attribut of first?

Image
By User



I want to count all img elements and take attribute (alt) of FIRST of it. My try:







$('img').each(function(index) {

    /* need count and take forst */

    if(index=0){

    var objid = $(this).attr('alt');

    }

});







Can you help me with this?


Labels:

Comments

  1. Tips For AllFebruary 13, 2012 at 7:00 AM

    var $images = $('img');
    var imgCount = $images.length;
    var altAttrOfFirst = $images.first().attr('alt');

    ReplyDelete
  2. Tips For AllFebruary 13, 2012 at 7:00 AM

    var $img= $('img');
    var count = $img.length;
    var attr = $img.first().attr('alt');

    ReplyDelete

Post a Comment

Popular posts from this blog

Why is this Javascript much *slower* than its jQuery equivalent?

By User
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()...
3 comments
Read more