首页 > 编程语言 > javascript实现查询商品功能
2022
10-31

javascript实现查询商品功能

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：

?
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
<!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');/*定义tbody*/
   var search_price = document.querySelector('.search-price');/*定义search-price*/
   var processor=document.querySelector('.processor');/*定义处理器*/
   var screen=document.querySelector('.screen');/*定义屏幕*/
   var camera=document.querySelector('.camera');/*定义相机*/
   var Battery=document.querySelector('.Battery');/*定义电池*/
   var CharacteristicFunction=document.querySelector('.CharacteristicFunction');/*特色功能*/
   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) { /*添加*/
     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自学编程网。

编程技巧