我正在尝试应用一项功能,在单击时隐藏或显示动态创建的卡片的背面(反之亦然)。第一个函数有效,但它只适用于模板,所以我发现解决它的方法是将事件委托给 HTML 中已经存在的元素,我尝试这样做,但它不起作用。
这是我一直在研究的功能
let isFlipped = false;
const mainContainer = document.getElementById("root");
mainContainer.addEventListener('click', function(){
if(event.target.matches('.button-container')) {
const card=event.target.closest('.card-container');
turnCard(card);
if (event.target.matches('.back')) {
const card=event.target.closest('.card-container');
returnCard(card);
}
}
})
function turnCard(card) {
const frontCard=document.querySelector("#front-card");
const backCard=document.querySelector("#back-card");
if (isFlipped) {
backCard.classList.toggle('hide');
frontCard.classList.toggle('hide');
}
isFlipped = !isFlipped;
}
function returnCard (card){
const frontCard=document.querySelector("#front-card");
const backCard=document.querySelector("#back-card");
if(!isFlipped){
backCard.classList.toggle('hide');
frontCard.classList.toggle('hide');
isFlipped = !isFlipped;
}
}
这是卡片结构
data.forEach(element => {
const cardItem = document.createElement('li');
cardItem.innerHTML += `<li class="card-container" itemscope itemtype="https://schema.org">
<article id="front-card">
<h2>${element.name}</h2>
<div class="top-card">
<img alt="Plant Name" src="${element.imageUrl}">
<dl itemscope itemtype="https://schema.org" class="facts">
<div class="amounts">
<dt itemprop="water-amount" class="amount">Water</dt>
<dd>
<img alt="Gota" src="resources/Icons/agua-activa.png" >
<img alt="Gota" src="resources/Icons/agua-activa.png" >
<img alt="Gota" src="resources/Icons/agua-inactiva.png" class="inactiva">
</dd>
</div>
<div class="amounts">
<dt itemprop="light-amount" class="amount">Light</dt>
<dd>
<img alt="Sol" src="resources/Icons/luz-activa.png" >
<img alt="Sol" src="resources/Icons/luz-inactiva.png" class="inactiva" >
<img alt="Sol" src="resources/Icons/luz-inactiva.png" class="inactiva" >
</dd>
</div>
<div class="amounts">
<dt itemprop="care-amount" class="amount">Care</dt>
<dd>
<img alt="Semaforo" src="resources/Icons/cuidado-activa.png" >
<img alt="Semaforo" src="resources/Icons/cuidado-inactiva.png" class="inactiva" >
<img alt="Semaforo" src="resources/Icons/cuidado-inactiva.png" class="inactiva" >
</dd>
</div>
</dl>
</div>
<p>${element.shortDescription}</p>
<div class="button-container">
<button>Detalles</button>
</div>
</article>
<article id="back-card" class="hide">
<h2>${element.name}</h2>
<div class="top-card">
<img alt="Plant Name" src="${element.imageUrl}">
<dl itemscope itemtype="https://schema.org">
<dt class="scientific">${element.scientificName}</dt>
<dt class="detail">Botanical Family</dt><dd>${element.botanicalFamily}</dd>
<dt class="detail">Usage</dt><dd>${element.applications}</dd>
</dl>
</div>
<div class="bottom-card">
<dl id="description">
<dt>Climate data</dt><dd>${element.climaticData}</dd>
<dt>Description</dt><dd>${element.description}</dd>
<dt>Maintenance</dt><dd>${element.maintenance}</dd>
</dl>
<div id="icons">
<div class="stats">
<img class="stats1" alt="Estadisticas 1" src="resources/Icons/estadisticas-1.png">
<img class="stats2" alt="Estadisticas 1" src="resources/Icons/estadisticas-2.png">
</div>
<div class="back">
<img alt="Regresar" src="resources/Icons/Regresar.png">
</div>
</div>
</div>
</article>
</li>`
cardList.appendChild(cardItem);
});
return cardList;
};
首先,在 HTML 中,id 应该是唯一的。所以而不是
<article id="front-card">
和
<article id="back-card" class="hide">
改为
<article class="front-card">
和
<article class="back-card hide">
接下来,这些行中的选择器将匹配多个元素,而不仅仅是您想要的元素。
const frontCard=document.querySelector("#front-card");
const backCard=document.querySelector("#back-card");
您已将卡片元素传递给函数,因此您可以使用它来选择您想要的元素(请注意,我已切换到类选择器,假设您将在上面进行 HTML 更改):
const frontCard=card.querySelector(".front-card");
const backCard=card.querySelector(".back-card");