javascript - 单击运行函数并在第二次单击时反转它

Question

我有一些文本在屏幕外显示动画，目前它会在页面刷新后立即运行。单击汉堡图标时，我需要调用函数。然后，当图标打开并再次单击时，我希望尽可能反转该功能，第一个字符 (C) 首先返回。

jQuery("#button").click(function() {
  jQuery(".line1").toggleClass("open1");
  jQuery(".line2").toggleClass("open2");
  jQuery(".line3").toggleClass("open3");
});

(function text_loop(i) {
  setTimeout(function() {
    if (i <= 15)
      $("#logo_text span").eq(i).addClass("slide_out");
    i++;
    text_loop(i);
  }, 100);
})(0);

#burger_container {
  background-color: #404041;
  display: block;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 60px;
  z-index: 101;
}

svg {
  margin: 20px auto 0 auto;
  display: block;
}

#logo_text {
  transform: rotate(-90deg);
  margin-top: 350px;
  font-size: 40px;
  color: #ffffff;
  font-weight: 700;
}

#logo_text span {
  font-weight: 400;
  position: relative;
  top: 0;
  transition: top 1s ease;
}

#logo_text span.slide_out {
  top: -60px;
  transition: top 0.5s ease;
}

.line1,
.line2,
.line3 {
  transition: all 0.3s ease;
}

.open1 {
  transform-origin: top left;
  transform: translatex(3px) translatey(-1px) rotate(45deg);
  width: 33px;
}

.open2 {
  opacity: 0;
}

.open3 {
  transform-origin: bottom left;
  transform: translatex(3px) translatey(1px) rotate(-45deg);
  width: 33px;
}

<script src="https://code.jquery.com/jquery-3.2.1.min.js" integrity="sha256-hwg4gsxgFZhOsEEamdOYGBf13FyQuiTwlAQgxVSNgt4=" crossorigin="anonymous"></script>

<div id="burger_container">
  <div>
    <svg id="button" style="height: 26px; width: 26px;">
      <g style="" fill="#f04d43">
        <rect class="line1" x="0" y="1" rx="2" ry="2" width="26px" height="4px" />
        <rect class="line2" x="0" y="11" rx="2" ry="2" width="26px" height="4px" />
        <rect class="line3" x="0" y="21" rx="2" ry="2" width="26px" height="4px" />
      </g>
    </svg>

    <div id="logo_text"><span>C</span><span>o</span><span>m</span><span>p</span><span>a</span><span>n</span><span>y</span>&nbsp;<span>W</span><span>o</span><span>r</span><span>k</span><span>f</span><span>o</span><span>r</span><span>c</span><span>e</span></div>
  </div>
</div>

Answer 1

将其作为函数调用，您的 setTimeout 不会在 if 语句中结束时将其包装在大括号内

jQuery("#button").click(function() {
  jQuery(".line1").toggleClass("open1");
  jQuery(".line2").toggleClass("open2");
  jQuery(".line3").toggleClass("open3");
  var currentClass = $("#logo_text span").eq(0).attr('class');
  if(currentClass === undefined || currentClass == "slide_in") {
    text_loop(0, 'slide_out');
  }
  else {
    text_loop(0, 'slide_in');
  }
});

function text_loop(i, classname) {
  setTimeout(function() {
    if(i <= 15) {
      $("#logo_text span").eq(i).attr('class', classname);
      i++;
      text_loop(i, classname);
    }
  }, 100);
}

#burger_container {
  background-color: #404041;
  display: block;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 60px;
  z-index: 101;
}

svg {
  margin: 20px auto 0 auto;
  display: block;
}

#logo_text {
  transform: rotate(-90deg);
  margin-top: 350px;
  font-size: 40px;
  color: #ffffff;
  font-weight: 700;
}

#logo_text span {
  font-weight: 400;
  position: relative;
  top: 0;
  transition: top 1s ease;
}

#logo_text span.slide_out {
  top: -60px;
  transition: top 0.5s ease;
}

#logo_text span.slide_in {
  top: 0px;
  transition: top 0.5s ease;
}

.line1,
.line2,
.line3 {
  transition: all 0.3s ease;
}

.open1 {
  transform-origin: top left;
  transform: translatex(3px) translatey(-1px) rotate(45deg);
  width: 33px;
}

.open2 {
  opacity: 0;
}

.open3 {
  transform-origin: bottom left;
  transform: translatex(3px) translatey(1px) rotate(-45deg);
  width: 33px;
}

<script src="https://code.jquery.com/jquery-3.2.1.min.js" integrity="sha256-hwg4gsxgFZhOsEEamdOYGBf13FyQuiTwlAQgxVSNgt4=" crossorigin="anonymous"></script>

<div id="burger_container">
  <div>
    <svg id="button" style="height: 26px; width: 26px;">
      <g style="" fill="#f04d43">
        <rect class="line1" x="0" y="1" rx="2" ry="2" width="26px" height="4px" />
        <rect class="line2" x="0" y="11" rx="2" ry="2" width="26px" height="4px" />
        <rect class="line3" x="0" y="21" rx="2" ry="2" width="26px" height="4px" />
      </g>
    </svg>

    <div id="logo_text"><span>C</span><span>o</span><span>m</span><span>p</span><span>a</span><span>n</span><span>y</span>&nbsp;<span>W</span><span>o</span><span>r</span><span>k</span><span>f</span><span>o</span><span>r</span><span>c</span><span>e</span></div>
  </div>
</div>