每天一个jquery插件-做搜索历史，供大家参考，具体内容如下
效果如下
代码部分
<!DOCTYPE html>
< html >
< head >
< meta charset = "utf-8" >
< title >做搜索历史</ title >
< script src = "js/jquery-3.4.1.min.js" ></ script >
< style >
*{
margin: 0px;
padding: 0px;
}
#searchbox{
/* border: 1px solid lightgray; */
height: 40px;
width: 720px;
position: relative;
}
#searchinput{
border: 1px solid lightgray;
border-radius: 5px 0px 0px 5px;
height: 28px;
position: absolute;
right: 45px;
top: 5px;
left: 5px;
width: 670px;
outline: none;
text-indent: 12px;
font-size: 12px;
color: gray;
}
#searchinput:focus{
border-color: rgb(252,25,68);
}
#searchinput:focus~#morebox{
display:flex;
}
#searchbtn{
height: 30px;
width: 40px;
border: none;
border-radius: 0px 5px 5px 0px;
background-color: rgb(252,25,68);
position: absolute;
right: 5px;
top: 5px;
display: flex;
justify-content: center;
align-items: center;
cursor: pointer;
}
#searchbtn img{
width: 25px;
height: 25px;
}
#morebox{
border: 1px solid lightgray;
position: absolute;
top: 40px;
left: 5px;
right: 5px;
height: 370px;
z-index: 7;
border-radius: 2px;
display: flex;
display: none;
}
#push{
flex: 1;
/* border: 1px solid lightgray; */
position: relative;
}
#history{
/* display: none; */
flex: 1;
/* border: 1px solid lightgray; */
position: relative;
}
.head{
position: absolute;
top: 0px;
width: 100%;
height: 30px;
border-bottom: 1px solid lightgray;
font-size: 12px;
display: flex;
align-items: center;
text-indent: 12px;
color: rgb(252,85,49);
}
.main{
position: absolute;
top: 30px;
width: 100%;
bottom: 0px;
overflow-x:hidden;
overflow-y: auto;
}
.item{
font-size: 12px;
height: 30px;
display: flex;
align-items: center;
text-indent: 12px;
cursor: pointer;
}
.item:hover{
background-color: lightgray;
}
</ style >
</ head >
< body >
< div id = "searchbox" >
< input id = "searchinput" placeholder = "c一下" />
< button id = "searchbtn" >< img src = "img/sc.png" ></ button >
< div id = "morebox" >
< div id = "history" >
< div class = "head" >搜索历史</ div >
< div class = "main" ></ div >
</ div >
< div id = "push" >
< div class = "head" >热门推荐</ div >
< div class = "main" >
< div class = "item" >微软终于对JDK下手了</ div >
< div class = "item" >小米隔空充电技术</ div >
< div class = "item" >Linux常用命令大全</ div >
< div class = "item" >阿飞超努力又水文了</ div >
< div class = "item" >每天学一个jquery插件竟然没有插件！究竟是道德的沦丧，还是人性的扭曲</ div >
</ div >
</ div >
</ div >
</ div >
</ body >
</ html >
< script >
$(document).ready(function(){
//每次点击搜索就假如缓存之中
//
$(".item").click(function(){
var str = $(this).text();
$("#searchinput").val(str)
})
// localStorage["history"] = '[]'//清除一下缓存;
drawhistory();
$("#searchbtn").click(function(){
var str = $("#searchinput").val();
if(str&&str!=""){
var arr = getSession();
arr.push(str);
localStorage["history"] = JSON.stringify(arr);
drawhistory();
}
})
getSession();
//根据缓存找到历史，然后生成搜索历史
function drawhistory(){
var arr = getSession();
$("#history .main .item").remove();
arr.forEach(item=>{
var $item = $("< div class = 'item' >"+item+"</ div >");
$item.appendTo($("#history .main"));
})
}
//获得缓存
function getSession(){
var ses = localStorage["history"];
var arr = ses==undefined?[]:JSON.parse(ses);
return arr;
}
})
</ script >
思路解释
1、布局是个硬伤，我也不知道我这个布局是不是最合适的，不过看着没毛病
2、然后历史部分就是存到localStorage里面，在合适的动作的地方处理成对应的效果放回dom里面
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服务器之家。
原文链接：https://blog.csdn.net/weixin_44142582/article/details/115935029