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>歷史記錄</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(); $('#sec'