动画改变单词宽度

Question

我有一个句子，我用一个单词淡化并用数组替换另一个单词。但是，由于单词的长度各不相同，句子宽度会突然改变，导致波动过渡 如何设置宽度更改动画？我尝试在css中添加一个到句子容器的转换，但是没有用。我将转换应用为1.5s all linear，因此无论何时发生更改，它都应该为宽度以及其他所有内容设置动画。有什么想法吗？

$(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>

编辑：对不起，如果我不清楚，我只想淡出这个词，而不是整个句子。我正在尝试设置宽度动画以适应新单词。我不想更改/添加任何元素，只需使用当前标记解决。

Answer 1

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>

Answer 2

为句子设置新单词时，可以保存#what width，然后使用此宽度制作动画。像这样：

// declare as global variable and update when you set new word
var width = greeting.css('width'); 
// animation
greeting.animate({
            "opacity": "0", "width": width
        }, 1500, function(){
        });

Answer 3

试试这个： - http://jsfiddle.net/adiioo7/c8fFU/13/

您可以根据您的要求更新句子效果。目前正在使用fadein / fadeout。

<强> JS： -

$(function () {
    var hello = ['jupiter', 'a', 'aklsjdlfajklsdlkf', 'asdf'];
    var used = ['jupiter'];
    var greeting = $('#what');
    var item;
    var sentence = $('#sentence');

    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);

        sentence.fadeIn(1500);
    }

    window.setInterval(function () {
        sentence.fadeOut(1500);
        greeting.animate({
            "opacity": "0"
        }, 1500);
        setTimeout(hey, 1500);
    }, 5000);

});

Answer 4

我遇到了同样的问题，采用了不同的方法，但没有褪色，只是打字：jsfiddle demo

function type($el, text, position) {
    if (text.length >= position) {
        var rchars = 'qbvol'; // typo chars
        if (position % 3 == 0 && Math.random() > .85) { // insert typo!
            var typo;
            var chr = text.substr(position, 1);
            if (chr == chr.toUpperCase()) { typo = chr.toLowerCase(); }
            else { typo = rchars.substr(Math.floor(Math.random() * rchars.length), 1); }
            $el.text(text.substring(0, position - 1) + typo + '_');
            setTimeout(function() { type($el, text, position - 1); }, 200)
        }
        else {
            $el.text(text.substring(0, position) + '_');
            setTimeout(function() { type($el, text, position + 1); }, 150)
        }
    }
    else {
        setTimeout(function() { $el.text(text); }, 400)
    }
}

它基本上会在页面上插入你的新文字，带有一个很好的插入符号和拼写错误，使它看起来像是在键入它。