【发布时间】：2021-09-30 18:32:09
【问题描述】：
所以之前我请你帮忙在单击容器 div 时执行一个行为，说 div 会改变高度，再次单击它会使其恢复正常，就像单击同级容器 div 一样。
我还添加了代码，当点击上述div时，里面的img会改变data-src。 这个 img div（不是容器）有一个只是文本的兄弟。它会通过css改变状态，当点击容器div时，有点像容器div本身。
在添加data-src更改的代码时，我失去了这个能力，无法找出原因。 你能帮帮我吗？
这是我的代码：
const allImages = document.querySelectorAll('.containertira .imgclasstosize');
const allContainers = document.querySelectorAll('.containertira');
allContainers.forEach(el => {
el.addEventListener('click', function(event) {
const thisImg = el.querySelector('.imgclasstosize');
const thisTxt = el.querySelector('.centered');
const sibling = thisImg.nextElementSibling; // Get the next sibiling
const bigSrc = thisImg.dataset.srcBig;
const allOtherImages = Array.from(allImages).filter(img => {
return img !== thisImg;
});
const isBig = thisImg.classList.contains('big');
1
if (isBig) {
thisImg.classList.remove('big');
thisTxt.classList.remove('left');
// reset to the small image URL
thisImg.src = thisImg.dataset.smallSrc;
} else {
// save the small image URL first:
if (!thisImg.dataset.smallSrc) {
thisImg.dataset.smallSrc = thisImg.src;
}
// change to the big image URL:
thisImg.src = bigSrc;
thisImg.classList.add('big');
thisTxt.classList.add('left');
sibling.classList.remove('hide');
}
allOtherImages.forEach(img => {
img.classList.remove('big');
// reset to the small image URL
if (img.dataset.smallSrc) {
img.src = img.dataset.smallSrc;
}
img.nextElementSibling.classList[isBig ? 'remove' : 'add']("hide");
});
});
}
);.imgclasstosize{
width: 100%;
object-fit: cover;
position: relative;
}
img.imgclasstosize {
height: 80px;
border: 1px solid gray;
transition : 1.5s all ease;
}
img.imgclasstosize.big {
height: 100%;
transition: 1.5s all ease;
width: 70vw;
margin-left: auto;
}
.containertira {
position: relative;
text-align: center;
color: white;
display: flex;
justify-content: space-between;
}
.imgclasstosize {
transition: all ease 0.5s;
}
.imgclasstosize.big {
/* transform: scale(1.1); */
}
.centered {
opacity: 1;
transition: all ease 0.5s;
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
font-family: 'blacker_pro_displayregular';
padding-top: 10px;
/* background: linear-gradient(90deg, rgba(33,37,41,1) 0%, rgba(255,255,255,0) 50%); */
color: white;
padding-left: 10px;
padding-bottom: 6.5px;
font-size: 5vh;
display:block;
pointer-events: none;
}
@media screen and (max-width: 960px) {.centered {font-size: 4.6vh;}}
@media screen and (max-width: 500px) {.centered {font-size: 3.5vh;}}
@media screen and (max-width: 375px) {.centered {font-size: 3vh;}}
.centered.left{
top: 0%;
left: 0%;
transform: translate(0%, 0%);
color: black;
padding-left: 10px;
padding-bottom: 6.5px;
transition: all ease 0.5s;
font-size: 7vh;
}
.imgclasstosize.big+.centered.hide {
opacity: 0;
}<div class="containertira">
<img id="primeiraimagem" class="imgclasstosize" src="//images.impresa.pt/expresso/2021-07-23-1---Minho.png-0c586cc8" data-src-big="//images.impresa.pt/expresso/2021-07-23-960px_minho.png-3938db2f">
<div class="centered">Minho</div>
</div>
<br>
<div class="containertira">
<img id="primeiraimagem" class="imgclasstosize" src="//images.impresa.pt/expresso/2021-07-23-1---Minho.png-0c586cc8" data-src-big="//images.impresa.pt/expresso/2021-07-23-960px_minho.png-3938db2f">
<div class="centered">Minho</div>
</div>大家好。
【问题讨论】：
-
我把你的JS变成了栈sn-p。你能把 HTML 和 CSS 添加到它上面以便执行吗？
-
更新了！感谢您的意见
标签： javascript html arrays dom events