H5與web端如何用localStorage實現歷史紀錄？
阿新 • • 發佈：2018-09-13
line -a itl 輸入 left console otto 添加 實現
1.使用jq完成localStorage實現歷史紀錄版。
代碼如下：
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title>沒毛病</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
<meta name="apple-mobile-web-app-capable" content="no">
<meta name="apple-mobile-web-app-status-bar-style" content="black">
<meta name="format-detection" content="telephone=no">
<style>
.history {
text-align: center;
}
#sec {
width: 50%;
overflow: hidden;
text-align: left;
height: 38px;
border: 1px solid #ccc;
border-radius: 10px;
}
.delete:after {
clear: both;
content: ‘.‘;
display: block;
width: 0;
height: 0;
visibility: hidden;
}
.delete>div {
border-radius: 50px;
float: left;
height: 23px;
border: 1px solid #ccc;
background: #E0E0E0;
margin-top: 14px;
margin-right: 10px;
overflow: hidden;
}
#search {
width: 141px;
height: 37px;
font-size: 14px;
line-height: 14px;
color: #959595;
padding-bottom: 2px;
}
#his-dele {
width: 22px;
height: 22px;
line-height: 22px;
display: inline-block;
background: #E0E0E0;
color: #fff;
border-radius: 50%;
text-align: center;
margin-left: 10px;
float: right;
position: relative;
top: -26px;
}
</style>
</head>
<body>
<input class="" id="sec">
<!--搜索框-->
<button id="search">搜索</button>
<!--歷史記錄-->
<div class="current">最近搜索</div>
<div class="delete history" style="width: 100%;float: left"></div>
<!--刪除按鈕-->
<div class="history" id="his-dele">X</div>
<!--無存儲記錄-->
<div class="Storage" style="width: 100px;height: 100px;margin: 0 auto;">無存儲記錄</div>
<script src="../js/jquery-1.11.0.js"></script>
<script>
/*搜索記錄相關*/
var hisTime; //獲取搜索時間數組
var hisItem; //獲取搜索內容數組
var firstKey; //獲取最早的1個搜索時間
function init() {
hisTime = []; //時間數組置空
hisItem = []; //內容數組置空
for(var i = 0; i < localStorage.length; i++) { //數據去重
if(!isNaN(localStorage.key(i))) { //判斷數據是否合法
hisTime.push(localStorage.key(i));
}
}
if(hisTime.length > 0) {
hisTime.sort(); //排序
for(var y = 0; y < hisTime.length; y++) {
localStorage.getItem(hisTime[y]).trim() && hisItem.push(localStorage.getItem(hisTime[y]));
}
}
console.log(hisTime);
console.log(hisItem);
$(".delete").html(""); //執行init(),每次清空之前添加的節點
$(".Storage").show();
for(var i = 0; i < hisItem.length; i++) {
$(".delete").prepend(‘<div class="word-break">‘ + hisItem[i] + ‘</div>‘);
if(hisItem[i] != ‘‘) {
$(".Storage").hide();
}
}
}
init(); //調用
$("#search").click(function() {
var value = $("#sec").val();
var time = (new Date()).getTime();
if(!value) {
alert("你未輸入搜索內容");
return false;
}
//輸入的內容localStorage有記錄
if($.inArray(value, hisItem) >= 0) {
for(var j = 0; j < localStorage.length; j++) {
if(value == localStorage.getItem(localStorage.key(j))) {
localStorage.removeItem(localStorage.key(j));
}
}
localStorage.setItem(time, value);
} else {
localStorage.setItem(time, value);
}
init();
});
//清除記錄功能
$("#his-dele").click(function() {
var f = 0;
for(; f < hisTime.length; f++) {
localStorage.removeItem(hisTime[f]);
}
init();
});
//蘋果手機不兼容出現input無法取值以下是解決方法
$(".delete").on("click", ".word-break", function() {
var div = $(this).text();
$(‘