Question

我想做的就是禁用一个按钮，当我启用另一个按钮时（这样一个按钮最多可以激活），但是我对JS的了解是非常基础的。任何提示将不胜感激。

    /* The switch - the box around the slider */
.switch {
  position: relative;
  display: inline-block;
  width: 60px;
  height: 34px;
}

/* Hide default HTML checkbox */
.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

/* The slider */
.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #ccc;
  -webkit-transition: .4s;
  transition: .4s;
}

.slider:before {
  position: absolute;
  content: "";
  height: 26px;
  width: 26px;
  left: 4px;
  bottom: 4px;
  background-color: white;
  -webkit-transition: .4s;
  transition: .4s;
}

input:checked + .slider {
  background-color: #2196F3;
}

input:focus + .slider {
  box-shadow: 0 0 1px #2196F3;
}

input:checked + .slider:before {
  -webkit-transform: translateX(26px);
  -ms-transform: translateX(26px);
  transform: translateX(26px);
}

/* Rounded sliders */
.slider.round {
  border-radius: 34px;
}

.slider.round:before {
  border-radius: 50%;

}

<div style="text-align: center; display: inline-block;">
<label class="switch">
  
<strong style=" position: absolute; color:white; margin-top: -30px; margin-left: -10px; text-align: center; font-weight: 100"> Text</strong>
  <input type="checkbox">
  <span class="slider round"></span>

</label>
</div>

<div style="display: inline-block;">
<div style="text-align: center;">
<label class="switch">
  
<strong style=" position: absolute; color:white; margin-top: -30px; margin-left: -10px; text-align: center; font-weight: 100"> Text</strong>
  <input type="checkbox">
  <span class="slider round"></span>

</label>
</div>

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Answer 1

// get all inputs and hang event handlers
document.querySelectorAll('input[type=checkbox]').forEach(element => element.addEventListener('click', disableOther))


function disableOther(event) {
  //"event" is current event(click)
  //"event.target" is our clicked element
  if (event.target.checked) {

    // if current input is checked -> disable ALL inputs
    document.querySelectorAll('input[type=checkbox]').forEach(element => element.disabled = true)
    // enabling our current input
    event.target.disabled = false;

  } else {

    // if current input is NOT checked -> enabling ALL inputs
    document.querySelectorAll('input[type=checkbox]').forEach(element => element.disabled = false)

  }
}

/* The switch - the box around the slider */

.switch {
  position: relative;
  display: inline-block;
  width: 60px;
  height: 34px;
}


/* Hide default HTML checkbox */

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}


/* The slider */

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #ccc;
  -webkit-transition: .4s;
  transition: .4s;
}

.slider:before {
  position: absolute;
  content: "";
  height: 26px;
  width: 26px;
  left: 4px;
  bottom: 4px;
  background-color: white;
  -webkit-transition: .4s;
  transition: .4s;
}

input:checked+.slider {
  background-color: #2196F3;
}

input:focus+.slider {
  box-shadow: 0 0 1px #2196F3;
}

input:checked+.slider:before {
  -webkit-transform: translateX(26px);
  -ms-transform: translateX(26px);
  transform: translateX(26px);
}


/* Rounded sliders */

.slider.round {
  border-radius: 34px;
}

.slider.round:before {
  border-radius: 50%;
}

<div style="text-align: center; display: inline-block;">
  <label class="switch">
  
<strong style=" position: absolute; color:white; margin-top: -30px; margin-left: -10px; text-align: center; font-weight: 100"> Text</strong>
  <input type="checkbox">
  <span class="slider round"></span>

</label>
</div>

<div style="display: inline-block;">
  <div style="text-align: center;">
    <label class="switch">
  
<strong style=" position: absolute; color:white; margin-top: -30px; margin-left: -10px; text-align: center; font-weight: 100"> Text</strong>
  <input type="checkbox">
  <span class="slider round"></span>

</label>
  </div>

如果不清楚，请随时询问。

Answer 2

<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
</head>
<body>
<div style="text-align: center; display: inline-block;">
<label class="switch">
<strong style=" position: absolute; color:white; margin-top: -30px; margin-left: 
-10px; text-align: center; font-weight: 100"> Text</strong>
<input type="checkbox" class="checkBox" onclick="ch($(this));"> 
<span class="slider round"></span>
</label>
</div>
<div style="display: inline-block;">
<div style="text-align: center;">
<label class="switch">

<strong style=" position: absolute; color:white; margin-top: -30px; margin-left: 
-10px; text-align: center; font-weight: 100"> Text</strong>
<input type="checkbox" class="checkBox" onclick="ch($(this));">
<span class="slider round"></span>

</label>
</div>
<script>
function ch(thi){
    $('.checkBox').prop('checked',false);
    thi.prop('checked',true);   }
</script>
</body>

Answer 3

此脚本检查是否检查了其他任何开关（添加到HTML文件的末尾，位于</body>之前：

<script>
const switches = document.querySelectorAll("input[type=checkbox]");
for(const s of switches) s.addEventListener("change", check);

function check(e) {
  //count the number of checked switches:
  let n = 0;
  for(const s of switches) {
    if(s.checked) n++;
  }
  // if there is more than one checked (including the one you just clicked), uncheck it:
  if(n > 1) e.target.checked = false;
}
</script>

此功能适用于任意数量的开关，只能切换一个。

拨动开关-当我启用另一个按钮时，禁用一个按钮

3 个答案: