javascript实现查询商品功能
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本文实例为大家分享了javascript实现查询商品功能的具体代码，供大家参考，具体内容如下
这是没有点击查询的主界面图
这是点击名称查询之后
按照价格查询
代码：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>JavaScript查询功能</title>
<style>
body{
font-family: "微软雅黑";
font-size: 18px;
}
table {
width: 800px;
border: 1px solid #000;
border-collapse: collapse;
margin: 0 auto;
}
td,th {
border: 1px solid #000;
text-align: center;
}
input {
width: 70px;
}
.search {
width: 600px;
margin: 20px auto;
}
</style>
</head>
<body>
<div class="search">
按照价格查询: <input type="text" class="start"> - <input type="text" class="end">
<button class="search-price">搜索</button>
<br><br>
按照商品名称查询: <input type="text" class="product">
<button class="search-pro">查询</button>
</div>
<table>
<thead>
<tr>
<th>产品名称</th>
<th>价格</th>
<th >处理器</th>
<th >屏幕</th>
<th >相机</th>
<th >电池</th>
<th >特色功能</th>
</tr>
</thead>
<tbody>
</tbody>
</table>
<script>
// 利用新增数组方法操作数据
var data = [
{
pname: '华为mateX2',
price: 17999,
processor:'麒麟9000',
screen:'',
camera:'',
Battery:'',
CharacteristicFunction:'',
},
{
pname: '华为mate40Pro',
price: 6599,
processor:'麒麟9000',
screen:'',
camera:'',
Battery:'',
CharacteristicFunction:'',
},
{
pname: '华为mate40',
price: 4999,
processor:'麒麟9000E',
screen:'',
camera:'',
Battery:'',
CharacteristicFunction:'',
},
{
pname: '华为mate30Pro',
price: 5499,
processor:'麒麟990',
screen:'',
camera:'',
Battery:'',
CharacteristicFunction:'',
},
{
pname: '华为mate30',
price: 3599,
processor:'麒麟990',
screen:'',
camera:'',
Battery:'',
CharacteristicFunction:'',
},
{
pname: '华为P40Pro',
price: 7999,
processor:'麒麟990',
screen:'',
camera:'',
Battery:'',
CharacteristicFunction:'',
},
{
pname: '华为P40',
price: 3999,
processor:'麒麟990',
screen:'',
camera:'',
Battery:'',
CharacteristicFunction:'',
},
{
pname: '荣耀30Pro',
price: 3999,
processor:'麒麟990',
screen:'',
camera:'',
Battery:'',
CharacteristicFunction:'',
},
{
pname: '华为mate20Pro',
price: 1599,
processor:'麒麟980',
screen:'',
camera:'',
Battery:'',
CharacteristicFunction:'',
},
{
pname: '小米11Pro',
price: 4799,
processor:'高通骁龙888',
screen:'',
camera:'',
Battery:'',
CharacteristicFunction:'',
},
{
pname: '小米11',
price: 3799,
processor:'高通骁龙888',
screen:'',
camera:'',
Battery:'',
CharacteristicFunction:'',
},
{
pname: '小米Mix4',
price: 5499,
processor:'高通骁龙888',
screen:'',
camera:'',
Battery:'',
CharacteristicFunction:'',
},
{
pname: '红米K40Pro',
price: 2999,
processor:'高通骁龙888',
screen:'',
camera:'',
Battery:'',
CharacteristicFunction:'',
},
{
pname: '红米K40',
price: 1999,
processor:'高通骁龙870',
screen:'',
camera:'',
Battery:'',
CharacteristicFunction:'',
},
{
pname: 'VivoX60Pro',
price: 5499,
processor:'高通骁龙888',
screen:'',
camera:'',
Battery:'',
CharacteristicFunction:'',
},
{
pname: 'VivoX60',
price: 3499,
processor:'猎户座',
screen:'',
camera:'',
Battery:'',
CharacteristicFunction:'',
},
{
pname: 'OPPOReno6Pro',
price: '',
processor:'高通骁龙888',
screen:'',
camera:'',
Battery:'',
CharacteristicFunction:'',
},
];
// 1. 定义和获取元素
var tbody = document.querySelector('tbody');
var search_price = document.querySelector('.search-price');
var processor=document.querySelector('.processor');
var screen=document.querySelector('.screen');
var camera=document.querySelector('.camera');
var Battery=document.querySelector('.Battery');
var CharacteristicFunction=document.querySelector('.CharacteristicFunction');
var start = document.querySelector('.start');
var end = document.querySelector('.end');
var product = document.querySelector('.product');
setDate(data);
// 2. 把数据渲染到页面中
function setDate(mydata) {
// 先清空原来tbody 里面的数据
tbody.innerHTML = '';
mydata.forEach(function(value) {
var tr = document.createElement('tr');
tr.innerHTML = '<td>' + value.pname +'</td><td>'
+ value.price+'</td><td>'
+ value.processor+'</td><td>'
+ value.screen+'</td><td>'
+ value.camera+'</td><td>'
+ value.Battery+'</td><td>'
+ value.CharacteristicFunction+'</td>'
;
tbody.appendChild(tr);
});
}
// 3. 根据价格查询商品
// 点击按钮,就可以根据商品价格去筛选数组里面的对象
search_price.addEventListener('click', function() {
var newDate = data.filter(function(value) {
return value.price >= start.value && value.price <= end.value;
});
console.log(newDate);
// 把筛选完之后的对象渲染到页面中
setDate(newDate);
});
// 4.模糊查找---- 根据商品名称查找商品模糊查找
product.addEventListener('keyup', function() {
// 把拿到的数据渲染到页面中
var result = data.filter(function(value) {
if (value.pname.includes(product.value)) {
return value
}
})
setDate(result);
setDate(data.filter(function(value) {
if (value.pname.includes(product.value)) {
return value
}
}));
})
</script>
</body>
</html>以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持编程网。
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