JS中的Select框实现模糊搜索功能
作者：茶卡盐佑星_
本文通过实例代码介绍JS中的Select框实现模糊搜索功能,下面是使用JavaScript来实现模糊搜索的功能,代码分为html部分和javascript部分,感兴趣的朋友跟随小编一起看看吧
您可以使用JavaScript来实现模糊搜索的功能，以下是一个简单的示例代码：
HTML部分：
<select id="select"> <option value="1">Apple</option> <option value="2">Banana</option> <option value="3">Cherry</option> <option value="4">Orange</option> </select>
JavaScript部分：
document.getElementById('select').addEventListener('input', function() {
var input, filter, option, i;
input = this.value;
filter = input.toUpperCase();
options = this.getElementsByTagName('option');
for (i = 0; i < options.length; i++) {
if (options[i].innerHTML.toUpperCase().indexOf(filter) > -1) {
options[i].style.display = '';
} else {
options[i].style.display = 'none';
}
}
});以上代码会监听select框的input事件，当用户输入内容时，会根据用户输入的内容来过滤选项。只有当某个选项的内容包含了用户输入的内容时，该选项才会显示出来，否则会被隐藏。这样就实现了模糊搜索的功能。
扩展：js实现模糊查询
今天为大家分享的是使用js实现模糊查询：
首先写出html
<div class="search"> <input type="text" class="inp"> <div class="but">搜索</div> </div> <div class="list"></div>
再写css
* {
padding: 0;
margin: 0;
}
.search {
width: 96%;
margin-left: 2%;
height: 60px;
display: flex;
align-items: center;
justify-content: center;
}
.search input {
width: 60%;
height: 20px;
border: 1px #eeeeee solid;
padding: 5px;
border-top-left-radius: 20px;
border-bottom-left-radius: 20px;
}
.search div {
width: 20%;
height: 32px;
text-align: center;
line-height: 32px;
background-color: #eeeeee;
border-top-right-radius: 20px;
border-bottom-right-radius: 20px;
}
.list {
width: 96%;
margin-left: 2%;
}
.list div {
width: 100%;
height: 40px;
display: flex;
justify-content: space-around;
}
.list span {
display: block;
width: 20%;
line-height: 40px;
text-align: center;
}现在结构样式都有的就该写数据了
let arr = [{
name: "吴小糖",
addres: "河南",
base: 410725,
num: 9999
}, {
name: "吴三",
addres: "浙江",
base: 102419,
num: 10000
}, {
name: "吴磊",
addres: "北京",
base: 314345,
num: 5555
}, {
name: "吴谨言",
addres: "湖南",
base: 341026,
num: 7888
}, {
name: "吴爽",
addres: "河南",
base: 410756,
num: 6666
}, {
name: "吴宣仪",
addres: "海南",
base: 243187,
num: 9999
}]
下一步就该js部分了
let but = document.getElementsByClassName("but")[0];
let inp = document.getElementsByClassName("inp")[0];
sorts(arr);
but.onclick = function() {
let data = [];
for (let i = 0; i < arr.length; i++) {
for (let k in arr[i]) {
if (String(arr[i][k]).indexOf(inp.value) > -1) {
data.push(arr[i]);
break;
}
}
}
sorts(data);
}
function sorts(a) {
let str = "";
for (let i = 0; i < a.length; i++) {
str += `<div>
<span>${a[i].name}</span>
<span>${a[i].base}</span>
<span>${a[i].num}</span>
<span>${a[i].addres}</span>
</div>`
}
document.getElementsByClassName("list")[0].innerHTML = str;
}这样就制作完成了，整体代码如下：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title></title>
</head>
<body>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title></title>
<style>
* {
padding: 0;
margin: 0;
}
.search {
width: 96%;
margin-left: 2%;
height: 60px;
display: flex;
align-items: center;
justify-content: center;
}
.search input {
width: 60%;
height: 20px;
border: 1px #eeeeee solid;
padding: 5px;
border-top-left-radius: 20px;
border-bottom-left-radius: 20px;
}
.search div {
width: 20%;
height: 32px;
text-align: center;
line-height: 32px;
background-color: #eeeeee;
border-top-right-radius: 20px;
border-bottom-right-radius: 20px;
}
.list {
width: 96%;
margin-left: 2%;
}
.list div {
width: 100%;
height: 40px;
display: flex;
justify-content: space-around;
}
.list span {
display: block;
width: 20%;
line-height: 40px;
text-align: center;
}
</style>
</head>
<body>
<div class="search">
<input type="text" class="inp">
<div class="but">搜索</div>
</div>
<div class="list"></div>
<script type="text/javascript">
let arr = [{
name: "吴小糖",
addres: "河南",
base: 410725,
num: 9999
}, {
name: "吴三",
addres: "浙江",
base: 102419,
num: 10000
}, {
name: "吴磊",
addres: "北京",
base: 314345,
num: 5555
}, {
name: "吴谨言",
addres: "湖南",
base: 341026,
num: 7888
}, {
name: "吴爽",
addres: "河南",
base: 410756,
num: 6666
}, {
name: "吴宣仪",
addres: "海南",
base: 243187,
num: 9999
}]
let but = document.getElementsByClassName("but")[0];
let inp = document.getElementsByClassName("inp")[0];
sorts(arr);
but.onclick = function() {
let data = [];
for (let i = 0; i < arr.length; i++) {
for (let k in arr[i]) {
if (String(arr[i][k]).indexOf(inp.value) > -1) {
data.push(arr[i]);
break;
}
}
}
sorts(data);
}
function sorts(a) {
let str = "";
for (let i = 0; i < a.length; i++) {
str += `<div>
<span>${a[i].name}</span>
<span>${a[i].base}</span>
<span>${a[i].num}</span>
<span>${a[i].addres}</span>
</div>`
}
document.getElementsByClassName("list")[0].innerHTML = str;
}
</script>
</body>
</html>
</body>
</html>以上就是本章的全部内容，感谢您的阅读。
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