逻辑非运算符(!)将类添加到错误按钮的问题

Question

我有一个按钮列表.当其中一个被点击时,我想给所有其他按钮一个类not-selected,它将文本的颜色改为灰色并使指针事件:无

我正在使用点击处理程序,不确定我是否使用感叹号!是正确的,因为它继续将该类添加到我刚刚单击的按钮而不是所有未单击的按钮.

$(".btn--list").on("click", function(){
    !($(this).addClass("not-selected"));
)};

<ul>
    <li><h2>Filters</h2></li>
    <li class="filter--all"><button class="btn--list btn--all is-selected">Select All</button></li>

    <li><h2>Decade</h2></li>
    <li><button class="btn--list btn--1960">1960s</button></li>
    <li><button class="btn--list btn--1970">1970s</button></li>
    <li><button class="btn--list btn--1980">1980s</button></li>
    <li><button class="btn--list btn--1990">1990s</button></li>
    <li><button class="btn--list btn--2000">2000s</button></li>
    <li><button class="btn--list btn--2010">2010s</button></li>

    <li><h2>Position</h2></li>
    <li><button class="btn--list btn--goalie">Goalie</button></li>
    <li><button class="btn--list btn--defencemen">Defenceman</button></li>
    <li><button class="btn--list btn--forward">Forward</button></li>

    <li><h2>Other</h2></li>
    <li><button class="btn--list btn--name">First Name</button></li>
    <li><button class="btn--list btn--hometown">Hometown</button></li>
    <li><button class="btn--list btn--gamesp">Games Played</button></li>
    <li class="not--goalie not--goals"><button class="btn--list btn--goals">Goals</button></li>
    <li class="not--goalie not-assists"><button class="btn--list btn--assists">Assists</button></li>
    <li class="not--goalie not-points"><button class="btn--list btn--points">Points</button></li>
    <li class="not--goalie not-penalty"><button class="btn--list btn--penalty">Penalty Minutes</button></li>
    <li><button class="btn--list btn--goalsagainst">Goals Against <span class="is-highlighted">*</span></button></li>
    <li><button class="btn--list btn--savepercent">Save Percentage <span class="is-highlighted">*</span></button></li>
    <li><button class="btn--list btn--shutouts">Shutouts <span class="is-highlighted">*</span></button></li>
</ul>

Answer 1

!在jQuery对象上使用运算符是无效的.为了达到您的要求,您可以选择所有.btn--list元素并排除当前元素.not(this).试试这个:

$(".btn--list").on("click", function() {
    $(".btn--list").not(this).addClass("not-selected");
});

/* For demo purposes... */
.not-selected {
  background-color: #c00;
  pointer-events: none;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<ul>
  <li>
    <h2>Filters</h2>
  </li>
  <li class="filter--all">
    <button class="btn--list btn--all is-selected">Select All</button>
  </li>

  <li>
    <h2>Decade</h2>
  </li>
  <li>
    <button class="btn--list btn--1960">1960s</button>
  </li>
  <li>
    <button class="btn--list btn--1970">1970s</button>
  </li>
  <li>
    <button class="btn--list btn--1980">1980s</button>
  </li>
  <li>
    <button class="btn--list btn--1990">1990s</button>
  </li>
  <li>
    <button class="btn--list btn--2000">2000s</button>
  </li>
  <li>
    <button class="btn--list btn--2010">2010s</button>
  </li>

  <li>
    <h2>Position</h2>
  </li>
  <li>
    <button class="btn--list btn--goalie">Goalie</button>
  </li>
  <li>
    <button class="btn--list btn--defencemen">Defenceman</button>
  </li>
  <li>
    <button class="btn--list btn--forward">Forward</button>
  </li>

  <li>
    <h2>Other</h2>
  </li>
  <li>
    <button class="btn--list btn--name">First Name</button>
  </li>
  <li>
    <button class="btn--list btn--hometown">Hometown</button>
  </li>
  <li>
    <button class="btn--list btn--gamesp">Games Played</button>
  </li>
  <li class="not--goalie not--goals">
    <button class="btn--list btn--goals">Goals</button>
  </li>
  <li class="not--goalie not-assists">
    <button class="btn--list btn--assists">Assists</button>
  </li>
  <li class="not--goalie not-points">
    <button class="btn--list btn--points">Points</button>
  </li>
  <li class="not--goalie not-penalty">
    <button class="btn--list btn--penalty">Penalty Minutes</button>
  </li>
  <li>
    <button class="btn--list btn--goalsagainst">Goals Against <span class="is-highlighted">*</span>
    </button>
  </li>
  <li>
    <button class="btn--list btn--savepercent">Save Percentage <span class="is-highlighted">*</span>
    </button>
  </li>
  <li>
    <button class="btn--list btn--shutouts">Shutouts <span class="is-highlighted">*</span>
    </button>
  </li>
</ul>