[英]How can I get the text of radio button if radio button checked?
我的JavaScript代碼是:
$('input:radio[class=radio]').click(function(e){
var txt = $(e.target).text();
console.log(txt);
});
演示: https : //jsfiddle.net/oscar11/m7by6zcw/9/
我怎樣才能解決這個問題?
文本不是輸入類型單選按鈕的有效屬性。
如果檢查內容,您將看到文本被渲染為輸入元素的同級。 您可以遍歷到父標簽元素,然后在其中添加文本。
同樣,這里也不需要使用eqaul選擇器屬性[class=radio]
),因為其中沒有元素具有class radio:
$('input:radio').click(function(e){
var txt = $(this).parent().text();
console.log(txt);
});
在事件處理程序中,可以使用Node.nextSibling,然后可以訪問其nodeValue :
$('input:radio[class=radio]').on('click', function () { var txt = this.nextSibling.nodeValue.trim(); console.log(txt); });
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <div class="col-md-4"> <ul class="list-unstyled"> <li><strong>England</strong></li> <li> <div class="checkbox"> <label> <input type="radio" name="england" class="radio"> Chelsea </label> </div> </li> <li> <div class="checkbox"> <label> <input type="radio" name="england" class="radio"> Mu </label> </div> </li> <li> <div class="checkbox"> <label> <input type="radio" name="england" class="radio"> Arsenal </label> </div> </li> </ul> </div> <div class="col-md-4"> <ul class="list-unstyled"> <li><strong>Spain</strong></li> <li> <div class="checkbox"> <label> <input type="radio" name="spain" class="radio"> Madrid </label> </div> </li> <li> <div class="checkbox"> <label> <input type="radio" name="spain" class="radio"> Barcelona </label> </div> </li> <li> <div class="checkbox"> <label> <input type="radio" name="spain" class="radio"> Atletico </label> </div> </li> </ul> </div>
您可以通過選擇input的父標簽來實現
$('input:radio').click(function() {
alert($(this).parent().text());
});
您沒有單選按鈕上帶有單選按鈕的課程。 因此,它也不會觸發click事件。 您將需要刪除它。
在這里更新了小提琴
參見下面的代碼片段
$('input:radio[class=radio]').click(function(e){ var txt = e.target.labels["0"].innerText; console.log(txt); });
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <div class="col-md-4"> <ul class="list-unstyled"> <li><strong>England</strong></li> <li> <div class="checkbox"> <label> <input type="radio" name="england" class="radio"> Chelsea </label> </div> </li> <li> <div class="checkbox"> <label> <input type="radio" name="england" class="radio"> Mu </label> </div> </li> <li> <div class="checkbox"> <label> <input type="radio" name="england" class="radio"> Arsenal </label> </div> </li> </ul> </div> <div class="col-md-4"> <ul class="list-unstyled"> <li><strong>Spain</strong></li> <li> <div class="checkbox"> <label> <input type="radio" name="spain" class="radio"> Madrid </label> </div> </li> <li> <div class="checkbox"> <label> <input type="radio" name="spain" class="radio"> Barcelona </label> </div> </li> <li> <div class="checkbox"> <label> <input type="radio" name="spain" class="radio"> Atletico </label> </div> </li> </ul> </div>
我只是嘗試您的代碼,但我發現您的選擇器我錯了,請嘗試以下一種: jsfiddle
$('input:radio').click(function(e){
var txt = $(e.target).parent().text();
alert(txt);
});
$('input:radio').click(function(e){ var txt = $(e.target).parent().text(); alert(txt); });
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <form id="frm"> <div class="col-md-4"> <ul class="list-unstyled"> <li><strong>England</strong></li> <li> <div class="checkbox"> <label> <input type="radio" name="england"> Chelsea </label> </div> </li> <li> <div class="checkbox"> <label> <input type="radio" name="england"> Mu </label> </div> </li> <li> <div class="checkbox"> <label> <input type="radio" name="england"> Arsenal </label> </div> </li> </ul> </div> <div class="col-md-4"> <ul class="list-unstyled"> <li><strong>Spain</strong></li> <li> <div class="checkbox"> <label> <input type="radio" name="spain"> Madrid </label> </div> </li> <li> <div class="checkbox"> <label> <input type="radio" name="spain"> Barcelona </label> </div> </li> <li> <div class="checkbox"> <label> <input type="radio" name="spain"> Atletico </label> </div> </li> </ul> </div> </form>
請嘗試以下示例,
的HTML
<div class="col-md-4">
<ul class="list-unstyled">
<li><strong>England</strong></li>
<li>
<div class="checkbox">
<label>
<input type="radio" name="england" value="Chelsea"> Chelsea
</label>
</div>
</li>
<li>
<div class="checkbox">
<label>
<input type="radio" name="england" value="Mu"> Mu
</label>
</div>
</li>
<li>
<div class="checkbox">
<label>
<input type="radio" name="england" value="Arsenal"> Arsenal
</label>
</div>
</li>
</ul>
</div>
<div class="col-md-4">
<ul class="list-unstyled">
<li><strong>Spain</strong></li>
<li>
<div class="checkbox">
<label>
<input type="radio" name="spain" value="Madrid"> Madrid
</label>
</div>
</li>
<li>
<div class="checkbox">
<label>
<input type="radio" name="spain" value="Barcelona"> Barcelona
</label>
</div>
</li>
<li>
<div class="checkbox">
<label>
<input type="radio" name="spain" value="Atletico"> Atletico
</label>
</div>
</li>
</ul>
</div>
JQUERY
<script type="text/javascript">
$("input[type=radio]").on("click",function(e){
alert($(this).val());
})
</script>
我將應用一個簡單的解決方案,即在您的單選按鈕中添加“值”:
例如:
<label>
<input type="radio" name="england" class="radio" value="Mu"> Mu
</label>
允許您優雅地訪問值:
$(e.target).val();
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