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>
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<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。
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