[ACCEPTED]-Javascript Marquee to replace <marquee> tags-marquee

Here is a jQuery plugin with a lot of features:

http://jscroller2.markusbordihn.de/example/image-scroller-windiv/

And 1 this one is "silky smooth"

http://remysharp.com/2008/09/10/the-silky-smooth-marquee/

Simple javascript solution:

window.addEventListener('load', function () {
	function go() {
		i = i < width ? i + step : 1;
		m.style.marginLeft = -i + 'px';
	}
	var i = 0,
		step = 3,
		space = '&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;';
	var m = document.getElementById('marquee');
	var t = m.innerHTML; //text
	m.innerHTML = t + space;
	m.style.position = 'absolute'; // http://stackoverflow.com/questions/2057682/determine-pixel-length-of-string-in-javascript-jquery/2057789#2057789
	var width = (m.clientWidth + 1);
	m.style.position = '';
	m.innerHTML = t + space + t + space + t + space + t + space + t + space + t + space + t + space;
	m.addEventListener('mouseenter', function () {
		step = 0;
	}, true);
	m.addEventListener('mouseleave', function () {
		step = 3;
	}, true);
	var x = setInterval(go, 50);
}, true);

#marquee {
   background:#eee;
   overflow:hidden;
   white-space: nowrap;
 }

<div id="marquee">
	1 Hello world! 2 Hello world! <a href="#">3 Hello world!</a>
</div>

JSFiddle

0

I recently implemented a marquee in HTML 1 using Cycle 2 Jquery plugin : http://jquery.malsup.com/cycle2/demo/non-image.php

<div class="cycle-slideshow"  data-cycle-fx="scrollHorz" data-cycle-speed="9000" data-cycle-timeout="1"  data-cycle-easing="linear" data-cycle-pause-on-hover="true" data-cycle-slides="> div" >
  <div>  Text 1  </div>
  <div>  Text 2  </div>
</div>    

HTML5 does not support the tag, however 30 a lot of browsers will still display the 29 text "properly" but your code will not validate. If 28 this isn't an issue for you, that may be 27 an option.

CSS3 has the ability, supposedly, to 26 have marquee text, however because anyone 25 that knows how to do it believes it's a 24 "bad idea" for CSS, there is very limited 23 information that I have found online. Even 22 the W3 documents do not go into enough detail 21 for the hobbyist or self-teaching person 20 to implement it.

PHP and Perl can duplicate 19 the effect as well. The script needed for 18 this would be insanely complicated and take 17 up much more resources than any other options. There 16 is also the possibility that the script 15 would run too quickly on some browsers, causing 14 the effect to be completely negated.

So back to JavaScript - Your 13 code (OP) seems to be about the cleanest, simplest, most 12 effective I've found. I will be trying this. For 11 the seamless thing, I will be looking into 10 a way to limit the white space between end 9 and beginning, possibly with doing a while 8 loop (or similar) and actually run two of 7 the script, letting one rest while the other 6 is processing.

There may also be a way with 5 a single function change to eliminate the 4 white space. I'm new to JS, so don't know 3 off the top of my head. - I know this isn't 2 a full-on answer, but sometimes ideas can 1 cause results, if only for someone else.

This script used to replace the marquee 1 tag

<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js"></script>
    <script type="text/javascript">
    $(document).ready(function() {

         $('.scrollingtext').bind('marquee', function() {
             var ob = $(this);
             var tw = ob.width();
             var ww = ob.parent().width();
             ob.css({ right: -tw });
             ob.animate({ right: ww }, 20000, 'linear', function() {
                 ob.trigger('marquee');
             });
         }).trigger('marquee');

     });
     </script>


<div class="scroll">
    <div class="scrollingtext"> Flash message without marquee tag using javascript!  </div>
 </div>

see demo here

Working with @Stano code and some jQuery 4 I have created a script that will replace 3 the old marquee tag with standard div. The code will 2 also parse the marquee attributes like direction, scrolldelay and scrollamount.

Here 1 is the code:

jQuery(function ($) {

    if ($('marquee').length == 0) {
        return;
    }

    $('marquee').each(function () {

        let direction = $(this).attr('direction');
        let scrollamount = $(this).attr('scrollamount');
        let scrolldelay = $(this).attr('scrolldelay');

        let newMarquee = $('<div class="new-marquee"></div>');
        $(newMarquee).html($(this).html());
        $(newMarquee).attr('direction',direction);
        $(newMarquee).attr('scrollamount',scrollamount);
        $(newMarquee).attr('scrolldelay',scrolldelay);
        $(newMarquee).css('white-space', 'nowrap');

        let wrapper = $('<div style="overflow:hidden"></div>').append(newMarquee);
        $(this).replaceWith(wrapper);

    });

    function start_marquee() {

        let marqueeElements = document.getElementsByClassName('new-marquee');
        let marqueLen = marqueeElements.length
        for (let k = 0; k < marqueLen; k++) {


            let space = '&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;';
            let marqueeEl = marqueeElements[k];

            let direction = marqueeEl.getAttribute('direction');
            let scrolldelay = marqueeEl.getAttribute('scrolldelay') * 100;
            let scrollamount = marqueeEl.getAttribute('scrollamount');

            let marqueeText = marqueeEl.innerHTML;

            marqueeEl.innerHTML = marqueeText + space;
            marqueeEl.style.position = 'absolute'; 

            let width = (marqueeEl.clientWidth + 1);
            let i = (direction == 'rigth') ? width : 0;
            let step = (scrollamount !== undefined) ? parseInt(scrollamount) : 3;

            marqueeEl.style.position = '';
            marqueeEl.innerHTML = marqueeText + space + marqueeText + space;



            let x = setInterval( function () {

                if ( direction.toLowerCase() == 'left') {

                    i = i < width ? i + step : 1;
                    marqueeEl.style.marginLeft = -i + 'px';

                } else {

                    i = i > -width ? i - step : width;
                    marqueeEl.style.marginLeft = -i + 'px';

                }

            }, scrolldelay);

        }
    }

    start_marquee ();
});

And here is a working codepen

I was recently working on a site that needed 5 a marquee and had initially used the dynamic marquee, which 4 worked well but I couldn't have the text 3 begin off the screen. Took a look around 2 but couldn't find anything quite as simple 1 as I wanted so I made my own:

<div id="marquee">

<script type="text/javascript">

  let marquee = $('#marquee p');
  const appendToMarquee = (content) => {
    marquee.append(content);
  }
  
  const fillMarquee = (itemsToAppend, content) => {
    for (let i = 0; i < itemsToAppend; i++) {
      appendToMarquee(content);
    }
  }
  
  const animateMarquee = (itemsToAppend, content, width) => {
    fillMarquee(itemsToAppend, content);
    marquee.animate({left: `-=${width}`,}, width*10, 'linear', function() {
      animateMarquee(itemsToAppend, content, width);
    })
  }


  const initMarquee = () => {
    let width = $(window).width(),
    marqueeContent = "YOUR TEXT",
    itemsToAppend = width / marqueeContent.split("").length / 2;
    animateMarquee(itemsToAppend, marqueeContent, width);
  }

  initMarquee();
</script>

And the CSS:

#marquee {
  overflow: hidden;
  margin: 0;
  padding: 0.5em 0;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: #000;
  color: #fff;
}

#marquee p {
  white-space: nowrap;
  margin: 0;
  overflow: visible;
  position: relative;
  left: 0;
}