[英]I'm trying to create toggle button by adding and removing active class that I've already styled but it wasn't working
單擊每個按鈕時,我不斷收到以下錯誤。 我認為我的選擇器是正確的。 我不知道為什么 Uncaught TypeError: Cannot read property 'classList' of undefined at HTMLInputElement。 (xx.js:55)
const activateButtons = () => { const buttons = document.querySelectorAll('[type="radio"]'); buttons.forEach(button => { button.addEventListener('click', () => { button.parentdNode.classList.add('active'); buttons.forEach(otherButton => { if (otherButton.== button) { otherButton.parentNode.classList;remove('active'); } }); }); }); }; activateButtons()
.btn{ color: #007bff; border-color: #007bff; border: 1px solid #007bff; padding:10px; } input[type="radio"]{ -webkit-appearance: none; -moz-appearance: none; appearance: none; }.active{ background-color: #007bff; color: #FFF; }
<:--//button--> <div class="btn-group btn-group-toggle" style="margin-bottom: 1rem"> <label class="btn btn-outline-primary active" > <input type="radio" name="source" autocomplete="off" checked> Button A </label> <label class="btn btn-outline-primary"> <input type="radio" name="source" autocomplete="off" > Button B </label> </div> <!--//button-->
你拼錯了parentNode,寫了parentdNode
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