过滤 HTML 内容？
我目前正在开发一个网页，我希望根据按钮按下情况来过滤图像。因此，如果我按“假期”，它应该只显示分配有 css 类“假期”的图像等。
我已经尝试过以下两种方法，但没有让它们发挥作用。由于对 javascript 缺乏良好的理解，可能是我这边的一个错误。
如何通过 W3Schools过滤 Div 元素
从Stack Overflow 帖子的下拉菜单中进行过滤。
* {
box-sizing: border-box;
}
.col-1 {
width: 8.33%;
}
.col-2 {
width: 16.66%;
}
.col-3 {
width: 25%;
}
.col-4 {
width: 33.33%;
}
.col-5 {
width: 41.66%;
}
.col-6 {
width: 50%;
}
.col-7 {
width: 58.33%;
}
.col-8 {
width: 66.66%;
}
.col-9 {
width: 75%;
}
.col-10 {
width: 83.33%;
}
.col-11 {
width: 91.66%;
}
.col-12 {
width: 100%;
}
[class*="col-"] {
float: left;
padding: 15px;
border: 1px solid red; /* Just for Display purposes */
}
.row::after {
content: "";
clear: both;
display: table;
}
.button-container {
text-align: center;
}
.flex-container {
display: flex;
flex-direction: row;
flex-wrap: wrap;
align-items: flex-start;
}
.flex-content {
width: 20%;
padding: 5px;
}
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1回答
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慕标5832272
给你一个解决方案filterSelection("all")function filterSelection(c) { var eles = document.getElementsByClassName("flex-content"); for(var i=0; i < eles.length; i++) { if (c === "all" || eles[i].classList.contains(c)) { eles[i].classList.remove("displayNone"); } else { eles[i].classList.add("displayNone"); } }}* { box-sizing: border-box;}.col-1 { width: 8.33%;}.col-2 { width: 16.66%;}.col-3 { width: 25%;}.col-4 { width: 33.33%;}.col-5 { width: 41.66%;}.col-6 { width: 50%;}.col-7 { width: 58.33%;}.col-8 { width: 66.66%;}.col-9 { width: 75%;}.col-10 { width: 83.33%;}.col-11 { width: 91.66%;}.col-12 { width: 100%;}[class*="col-"] { float: left; padding: 15px; border: 1px solid red; /* Just for Display purposes */}.row::after { content: ""; clear: both; display: table;}.button-container { text-align: center;}.flex-container { display: flex; flex-direction: row; flex-wrap: wrap; align-items: flex-start;}.flex-content { width: 20%; padding: 5px;}.displayNone { display: none;}<body> <div class="row"> <div class="col-12"> <h1 style="text-align: center;">Image List</h1> <div class="button-container"> <button class="btn" onclick="filterSelection('all')" >All</button> <button class="btn" onclick="filterSelection('holiday')" >Holidays</button> <button class="btn" onclick="filterSelection('work')" >Work</button> </div> </div> </div> <div class="row"> <div class="col-2"></div> <div class="col-8"> <div class="flex-container"> <div class="flex-content"> <img src="https://via.placeholder.com/300" style="width: 100%;"/> </div> <div class="flex-content holiday"> <img src="https://via.placeholder.com/300" style="width: 100%;"/> </div> <div class="flex-content work"> <img src="https://via.placeholder.com/300" style="width: 100%;"/> </div> <div class="flex-content"> <img src="https://via.placeholder.com/300" style="width: 100%;"/> </div> <div class="flex-content"> <img src="https://via.placeholder.com/300" style="width: 100%;"/> </div> <div class="flex-content"> <img src="https://via.placeholder.com/300" style="width: 100%;"/> </div> </div> </div> <div class="col-2"> </div> </div></body>向按钮添加 onClick 方法filterSelection并将值作为参数传递。创建一个displayNone用于隐藏元素的类。使用jsfiddle的解决方案
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