Animate changing words width

animation, css, html, javascript, jquery

Solution

function dataWord () {

  $("[data-words]").attr("data-words", function(i, d){
    var $self  = $(this),
        $words = d.split("|"),
        tot    = $words.length,
        c      = 0; 

    // CREATE SPANS INSIDE SPAN
    for(var i=0; i<tot; i++) $self.append($('<span/>',{text:$words[i]}));

    // COLLECT WORDS AND HIDE
    $words = $self.find("span").hide();

    // ANIMATE AND LOOP
    (function loop(){
      $self.animate({ width: $words.eq( c ).width() });
      $words.stop().fadeOut().eq(c).fadeIn().delay(1000).show(0, loop);
      c = ++c % tot;
    }());
    
  });

}

// dataWord(); // If you don't use external fonts use this on DOM ready; otherwise use:
$(window).on("load", dataWord);
p{text-align: center;font-family: 'Open Sans Condensed', sans-serif;font-size: 2em;}

/* WORDS SWAP */
[data-words]{
  vertical-align: top;
  position: static;
}
[data-words] > span{
  position: absolute;
  color: chocolate;
}
<link href='http://fonts.googleapis.com/css?family=Open+Sans+Condensed:300' rel='stylesheet' type='text/css'>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<p>
  We provide
  <span data-words="code|solutions|design"></span>
  for your business.
</p>

<p>
  You ordered
  <span data-words="1|3|28"></span>
  <b>big</b>
  <span data-words="salad|macs|chips"></span>
</p>

Problem

I have a sentence where I fade in one word and replace it with another from an array. However, since the words all vary in length, the sentence width abruptly changes and it results in a choppy transition. How can I animate the width change? I tried adding a transition to the container of the sentence in css but that didn't work. I applied the transition as `1.5s all linear`, so it should be animating the width as well as everything else whenever there is change. Any ideas? ``` $(function() { var hello = ['dynamic', 'a', 'aklsjdlfajklsdlkf', 'asdf']; var used = ['dynamic']; var greeting = $('#what'); var item; function hey() { item = hello[Math.floor(Math.random() * hello.length)]; if (hello.length != used.length) { while (jQuery.inArray(item, used) != -1) { item = hello[Math.floor(Math.random() * hello.length)]; } used.push(item); } else { used.length = 0; item = hello[Math.floor(Math.random() * hello.length)]; used.push(item); } greeting.html(item); greeting.animate({ "opacity": "1" }, 1500); } window.setInterval(function() { greeting.animate({ "opacity": "0" }, 1500); setTimeout(hey, 1500) }, 5000); }); ``` ``` #sentence { transition: 1.5s all linear; } #what { font-style: italic; text-decoration: underline; color: red; } ``` ``` <p id="sentence"> This is a sentence that has <span id="what">dynamic</span> text that alters width. </p> <script src="//ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script> ``` EDIT: Sorry if I was unclear, I only want to fade out the word, not the entire sentence. I'm trying to animate the width to fit the new word. I don't want to change/add any elements, just solve with the current tags in place.

Original source

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