原生JS实现购物车结算功能代码+zepto版

原生JS实现购物车结算功能代码+zepto版_第1张图片

 

html

DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>原生JS实现购物车结算功能代码title>
<link rel="stylesheet" href="css/style.css"/>
<script type="text/javascript" src="js/demo.js">script>
head>
<body>
<div class="catbox">
  <table id="cartTable">
    <thead>
      <tr>
        <th><label>
            <input class="check-all check" type="checkbox"/>  全选label>th>
        <th>商品th>
        <th>单价th>
        <th>数量th>
        <th>小计th>
        <th>操作th>
      tr>
    thead>
    <tbody>
      <tr>
        <td class="checkbox"><input class="check-one check" type="checkbox"/>td>
        <td class="goods"><img src="images/1.jpg" alt=""/><span>Casio/卡西欧 EX-TR350span>td>
        <td class="price">5999.88td>
        <td class="count"><span class="reduce">span>
          <input class="count-input" type="text" value="1"/>
          <span class="add">+span>td>
        <td class="subtotal">5999.88td>
        <td class="operation"><span class="delete">删除span>td>
      tr>
      <tr>
        <td class="checkbox"><input class="check-one check" type="checkbox"/>td>
        <td class="goods"><img src="images/2.jpg" alt=""/><span>Canon/佳能 PowerShot SX50 HSspan>td>
        <td class="price">3888.50td>
        <td class="count"><span class="reduce">span>
          <input class="count-input" type="text" value="1"/>
          <span class="add">+span>td>
        <td class="subtotal">3888.50td>
        <td class="operation"><span class="delete">删除span>td>
      tr>
      <tr>
        <td class="checkbox"><input class="check-one check" type="checkbox"/>td>
        <td class="goods"><img src="images/3.jpg" alt=""/><span>Sony/索尼 DSC-WX300span>td>
        <td class="price">1428.50td>
        <td class="count"><span class="reduce">span>
          <input class="count-input" type="text" value="1"/>
          <span class="add">+span>td>
        <td class="subtotal">1428.50td>
        <td class="operation"><span class="delete">删除span>td>
      tr>
      <tr>
        <td class="checkbox"><input class="check-one check" type="checkbox"/>td>
        <td class="goods"><img src="images/4.jpg" alt=""/><span>Fujifilm/富士 instax mini 25span>td>
        <td class="price">640.60td>
        <td class="count"><span class="reduce">span>
          <input class="count-input" type="text" value="1"/>
          <span class="add">+span>td>
        <td class="subtotal">640.60td>
        <td class="operation"><span class="delete">删除span>td>
      tr>
    tbody>
  table>
  <div class="foot" id="foot">
    <label class="fl select-all"><input type="checkbox" class="check-all check"/>  全选label>
    <a class="fl delete" id="deleteAll" href="javascript:;">删除a>
    <div class="fr closing" onclick="getTotal();">结 算div>
    <input type="hidden" id="cartTotalPrice" />
    <div class="fr total">合计:¥<span id="priceTotal">0.00span>div>
    <div class="fr selected" id="selected">已选商品<span id="selectedTotal">0span><span class="arrow up">span><span class="arrow down">span>div>
    <div class="selected-view">
      <div id="selectedViewList" class="clearfix">
        <div><img src="images/1.jpg"><span>取消选择span>div>
      div>
      <span class="arrow"><span>span>span> div>
  div>
div>
body>
html>

 

js:

window.onload = function () {
    if (!document.getElementsByClassName) {
        document.getElementsByClassName = function (cls) {
            var ret = [];
            var els = document.getElementsByTagName('*');
            for (var i = 0, len = els.length; i < len; i++) {

                if (els[i].className.indexOf(cls + ' ') >=0 || els[i].className.indexOf(' ' + cls + ' ') >=0 || els[i].className.indexOf(' ' + cls) >=0) {
                    ret.push(els[i]);
                }
            }
            return ret;
        }
    }

    var table = document.getElementById('cartTable'); // 购物车表格
    var selectInputs = document.getElementsByClassName('check'); // 所有勾选框
    var checkAllInputs = document.getElementsByClassName('check-all') // 全选框
    var tr = table.children[1].rows; //
    var selectedTotal = document.getElementById('selectedTotal'); //已选商品数目容器
    var priceTotal = document.getElementById('priceTotal'); //总计
    var deleteAll = document.getElementById('deleteAll'); // 删除全部按钮
    var selectedViewList = document.getElementById('selectedViewList'); //浮层已选商品列表容器
    var selected = document.getElementById('selected'); //已选商品
    var foot = document.getElementById('foot');

    // 更新总数和总价格,已选浮层
    function getTotal() {
        var seleted = 0;
        var price = 0;
        var HTMLstr = '';
        for (var i = 0, len = tr.length; i < len; i++) {
            if (tr[i].getElementsByTagName('input')[0].checked) {
                tr[i].className = 'on';
                seleted += parseInt(tr[i].getElementsByTagName('input')[1].value);
                price += parseFloat(tr[i].cells[4].innerHTML);
                HTMLstr += '
取消选择
' } else { tr[i].className = ''; } } selectedTotal.innerHTML = seleted; priceTotal.innerHTML = price.toFixed(2); selectedViewList.innerHTML = HTMLstr; if (seleted == 0) { foot.className = 'foot'; } } // 计算单行价格 function getSubtotal(tr) { var cells = tr.cells; var price = cells[2]; //单价 var subtotal = cells[4]; //小计td var countInput = tr.getElementsByTagName('input')[1]; //数目input var span = tr.getElementsByTagName('span')[1]; //-号 //写入HTML subtotal.innerHTML = (parseInt(countInput.value) * parseFloat(price.innerHTML)).toFixed(2); //如果数目只有一个,把-号去掉 if (countInput.value == 1) { span.innerHTML = ''; }else{ span.innerHTML = '-'; } } // 点击选择框 for(var i = 0; i < selectInputs.length; i++ ){ selectInputs[i].onclick = function () { if (this.className.indexOf('check-all') >= 0) { //如果是全选,则吧所有的选择框选中 for (var j = 0; j < selectInputs.length; j++) { selectInputs[j].checked = this.checked; } } if (!this.checked) { //只要有一个未勾选,则取消全选框的选中状态 for (var i = 0; i < checkAllInputs.length; i++) { checkAllInputs[i].checked = false; } } getTotal();//选完更新总计 } } // 显示已选商品弹层 selected.onclick = function () { if (selectedTotal.innerHTML != 0) { foot.className = (foot.className == 'foot' ? 'foot show' : 'foot'); } } //已选商品弹层中的取消选择按钮 selectedViewList.onclick = function (e) { var e = e || window.event; var el = e.srcElement; if (el.className=='del') { var input = tr[el.getAttribute('index')].getElementsByTagName('input')[0] input.checked = false; input.onclick(); } } //为每行元素添加事件 for (var i = 0; i < tr.length; i++) { //将点击事件绑定到tr元素 tr[i].onclick = function (e) { var e = e || window.event; var el = e.target || e.srcElement; //通过事件对象的target属性获取触发元素 var cls = el.className; //触发元素的class var countInout = this.getElementsByTagName('input')[1]; // 数目input var value = parseInt(countInout.value); //数目 //通过判断触发元素的class确定用户点击了哪个元素 switch (cls) { case 'add': //点击了加号 countInout.value = value + 1; getSubtotal(this); break; case 'reduce': //点击了减号 if (value > 1) { countInout.value = value - 1; getSubtotal(this); } break; case 'delete': //点击了删除 var conf = confirm('确定删除此商品吗?'); if (conf) { this.parentNode.removeChild(this); } break; } getTotal(); } // 给数目输入框绑定keyup事件 tr[i].getElementsByTagName('input')[1].onkeyup = function () { var val = parseInt(this.value); if (isNaN(val) || val <= 0) { val = 1; } if (this.value != val) { this.value = val; } getSubtotal(this.parentNode.parentNode); //更新小计 getTotal(); //更新总数 } } // 点击全部删除 deleteAll.onclick = function () { if (selectedTotal.innerHTML != 0) { var con = confirm('确定删除所选商品吗?'); //弹出确认框 if (con) { for (var i = 0; i < tr.length; i++) { // 如果被选中,就删除相应的行 if (tr[i].getElementsByTagName('input')[0].checked) { tr[i].parentNode.removeChild(tr[i]); // 删除相应节点 i--; //回退下标位置 } } } } else { alert('请选择商品!'); } getTotal(); //更新总数 } // 默认全选 checkAllInputs[0].checked = true; checkAllInputs[0].onclick(); }

 

css:

@charset "utf-8";
*{margin:0;padding:0;list-style-type:none;}
a{color:#666;text-decoration:none;}
table{border-collapse:collapse;border-spacing:0;border:0;}
body{color:#666;font:12px/180% Arial, Helvetica, sans-serif, "新宋体";}
clearfix:after{content:".";display:block;height:0;clear:both;visibility:hidden}
.clearfix{display:inline-table}
*html .clearfix{height:1%}
.clearfix{display:block}
*+html .clearfix{min-height:1%}
.fl{float:left;}
.fr{float:right;}
/*素材家园 - www.sucaijiayuan.com*/
.catbox{width:940px;margin:100px auto;}
.catbox table{text-align:center;width:100%;}
.catbox table th,.catbox table td{border:1px solid #CADEFF;}
.catbox table th{background:#e2f2ff;border-top:3px solid #a7cbff;height:30px;}
.catbox table td{padding:10px;color:#444;}
.catbox table tbody tr:hover{background:RGB(238,246,255);}
.checkbox{width:60px;}
.check-all{ vertical-align:middle;}
.goods{width:300px;}
.goods span{width:180px;margin-top:20px;text-align:left;float:left;}
.goods img{width:100px;height:80px;margin-right:10px;float:left;}
.price{width:130px;}
.count{width:90px;}
.count .add, .count input, .count .reduce{float:left;margin-right:-1px;position:relative;z-index:0;}
.count .add, .count .reduce{height:23px;width:17px;border:1px solid #e5e5e5;background:#f0f0f0;text-align:center;line-height:23px;color:#444;}
.count .add:hover, .count .reduce:hover{color:#f50;z-index:3;border-color:#f60;cursor:pointer;}
.count input{width:50px;height:15px;line-height:15px;border:1px solid #aaa;color:#343434;text-align:center;padding:4px 0;background-color:#fff;z-index:2;}
.subtotal{width:150px;color:red;font-weight:bold;}
.operation span:hover,a:hover{cursor:pointer;color:red;text-decoration:underline;}

.foot{margin-top:0px;color:#666;height:48px;border:1px solid #c8c8c8;border-top:0;background-color:#eaeaea;background-image:linear-gradient(RGB(241,241,241),RGB(226,226,226));position:relative;z-index:8;}
.foot div, .foot a{line-height:48px;height:48px;}
.foot .select-all{width:80px;height:48px;line-height:48px;color:#666;text-align:center;}
.foot .delete{padding-left:10px;}
.foot .closing{border-left:1px solid #c8c8c8;width:103px;text-align:center;color:#666;font-weight:bold;cursor:pointer;background-image:linear-gradient(RGB(241,241,241),RGB(226,226,226));}
.foot .closing:hover{background-image:linear-gradient(RGB(226,226,226),RGB(241,241,241));color:#333;}
.foot .total{margin:0 20px;cursor:pointer;}
.foot  #priceTotal, .foot #selectedTotal{color:red;font-family:"Microsoft Yahei";font-weight:bold;}
.foot .selected{cursor:pointer;}
.foot .selected .arrow{position:relative;top:-3px;margin-left:3px;}
.foot .selected .down{position:relative;top:3px;display:none;}
.show .selected .down{display:inline;}
.show .selected .up{display:none;}
.foot .selected:hover .arrow{color:red;}
.foot .selected-view{width:938px;border:1px solid #c8c8c8;position:absolute;height:auto;background:#ffffff;z-index:9;bottom:48px;left:-1px;display:none;}
.show .selected-view{display:block;}
.foot .selected-view div{height:auto;}
.foot .selected-view .arrow{font-size:16px;line-height:100%;color:#c8c8c8;position:absolute;right:330px;bottom:-9px;}
.foot .selected-view .arrow span{color:#ffffff;position:absolute;left:0px;bottom:1px;}

#selectedViewList{padding:10px 20px 10px 20px;}
#selectedViewList div{display:inline-block;position:relative;width:100px;height:80px;border:1px solid #ccc;margin:10px;float:left;}
#selectedViewList div img{width:100px;height:80px;margin-right:10px;float:left;}
#selectedViewList div span{display:none;color:#ffffff;font-size:12px;position:absolute;top:0px;right:0px;width:60px;height:18px;line-height:18px;text-align:center;background:#000;cursor:pointer;}
#selectedViewList div:hover span{display:block;}

 

 

zepto版本:

原生JS实现购物车结算功能代码+zepto版_第2张图片

DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <title>牛汽配微信商城版 title>
  <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=0">
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
  <meta name="apple-mobile-web-app-capable" content="yes">
  <meta name="apple-mobile-web-app-status-bar-style" content="black">
  <meta name="apple-touch-fullscreen" content="yes">
  <meta name="apple-itunes-app" content="app-id=979472604">
  <meta name="format-detection" content="telephone=no">
  <meta name="x5-fullscreen" content="true">
  <meta http-equiv="Expires" content="-1">
  <meta http-equiv="Cache-Control" content="no-cache">
  <meta http-equiv="Pragma" content="no-cache">
  <meta name="author" content="m.sopell.com">
  <link rel="stylesheet" href="/h5/style/sprite.css">
  <link rel="stylesheet" href="/h5/style/weixin.css">
  <script>
  var dpr, rem, scale;
  var docEl = document.documentElement;
  var metaEl = document.querySelector('meta[name="viewport"]');

  dpr = window.devicePixelRatio || 1;

  function browser() {
    var u = navigator.userAgent;
    return {
      isWeiXin: u.match(/MicroMessenger/),
      mobile: !!u.match(/AppleWebKit.*Mobile.*/),
      ios: !!u.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/),
      android: u.indexOf('Android') > -1 || u.indexOf('Linux') > -1
    }
  }
  var b = browser();
  if (b.mobile) {
    rem = docEl.clientWidth * dpr / 10;
  } else {
    rem = 54;
  }

  scale = 1 / dpr;
  // 设置viewport,进行缩放,达到高清效果
  metaEl.setAttribute('content', 'width=device-width, initial-scale=' + scale + ',maximum-scale=' + scale + ', minimum-scale=' + scale + ',user-scalable=no');

  // 设置data-dpr属性,留作的css hack之用
  docEl.setAttribute('data-dpr', dpr);
  docEl.style.fontSize = rem + 'px';
  script>
head>

<body>
  <div class="view">
    <div class="content">
      
      <div class="cart-wrap">
        <div class="productsListWrap cartListWrap">
          <ul class="productsList cartList" id="cartTable">
            
            <li>
              <div class="items" price="1600.50" subtotal="1600.50">
                <div class="cart-check-wrapper">
                  <input class="check-one check icon-selected" type="checkbox" />
                div>
                <div class="product-img">
                  <a href="">
                    <img src="../images/product1.jpg" alt="" width="100%" height="100%">
                  a>
                div>
                <div class="product-desc cart-desc">
                  <dl>
                    <dt class="product-name">
                      <a href="">固特异 轮胎 225/50R17 98Ya>
                    dt>
                    <dd class="product-car">205/55R16 V 91dd>
                    <dd class="product-prices cart-prices">¥1060.50dd>
                    <div class="cart-opt">
                      <span class="quantity-decrease" href="javascript:void();">-span>
                      <input type="text" size="4" value="1" name="num" class="quantity" readonly="readonly">
                      <span class="quantity-increase" href="javascript:void();">+span>
                    div>
                  dl>
                div>
              div>
            li>
            
            <li>
              <div class="items">
                <div class="cart-check-wrapper">
                  <input class="check-one check disabled" disabled type="checkbox" />
                div>
                <div class="product-img">
                  <a href="">
                    <img src="../images/product1.jpg" alt="" width="100%" height="100%">
                  a>
                div>
                <div class="product-desc cart-desc">
                  <dl>
                    <dt class="product-name deleted">
                      <a href="">固特异 轮胎 225/50R17 98Ya>
                    dt>
                    <dd class="product-car">205/55R16 V 91dd>
                    <dd class="product-prices cart-prices cart-overdue">商品已失效dd>
                    <span class="cart-wastebin">删除span>
                  dl>
                div>
              div>
            li>
          ul>
        div>
      div>
    div>
  div>
  
  <div class="cart-fixed">
    <div class="cart-total-bar">
      <div class="cart-check-wrapper">
        <input class="check-all check icon-selected" type="checkbox" />
        <span class="all-text">全选span>
      div>
      <div class="cart-info">
        <div class="cart-info-hj">
          <span class="hj">合计:span>
          <span class="hj-price" id="priceTotal">0.00span>
        div>
      div>
    div>
    <div class="cart-bar">
      <div class="cart-bar-back">
        <a href="" class="ios icon-back1">a>
      div>
      <div class="cart-bar-list">
        <a href="" class="red-color" id="add_cart">
          <span>结算span>
        a>
      div>
    div>
  div>
  <script src="/h5/js/zepto.min.js">script>
  <script src="/h5/js/popup.js">script>
  <script type="text/javascript">
  $(function() {
    var table = $('#cartTable'); // 购物车表格
    var selectInputs = $('.check'); // 所有勾选框
    var checkAllInputs = $('.check-all'); // 全选框
    var tr = table.children(); //
    var priceTotal = $('#priceTotal'); //总计

    //更新总数和总价格
    function getTotal() {
      var price = 0;
      tr.each(function(index) {
        if ($(this).find('.check').is(':checked')) {
          $(this).addClass('on');
          price += parseFloat($(this).find('.items').attr('subtotal'));
        } else {
          $(this).attr('class', '');
        }
      });
      priceTotal.text(price.toFixed(2));
    }

    // 计算单行价格
    function getSubtotal(tr) {
      var item = tr.find('.items');
      var price = tr.find('.items').attr('price'); //单价
      var subtotal = tr.find('.items').attr('subtotal'); //小计td
      var countInput = tr.find('.quantity').val(); //小计td
      //写入HTML
      subtotal = (parseInt(countInput) * parseFloat(price)).toFixed(2);
      item.attr('subtotal', subtotal)
        //console.log(item.attr('subtotal'));
    }

    // 点击选择框
    selectInputs.each(function() {
      this.onclick = function() {
        if ($(this).hasClass('check-all')) { //如果是全选,则吧所有的选择框选中
          for (var j = 0; j < selectInputs.length; j++) {
            if (!selectInputs[j].disabled) {
              selectInputs[j].checked = this.checked;
            }
          }
        }
        if (!this.checked) { // 要有一个未勾选,则取消全选框的选中状态
          for (var i = 0; i < checkAllInputs.length; i++) {
            checkAllInputs[i].checked = false;
          }
        }
        getTotal(); //选完更新总计
      };
    });

    //为每行元素添加事件
    tr.each(function(index) {
      $(this).on('click', function(e) {
        var el = e.target || e.srcElement; // 过事件对象的target属性获取触发元素
        var cls = el.className; //触发元素的class
        var countInout = $(this).find('.quantity'); // 数目input
        var value = parseInt(countInout.val()); // 数目
        //通过判断触发元素的class确定用户点击了哪个元素
        switch (cls) {
          case 'quantity-increase': //点击了加号
            countInout.val(value + 1);
            getSubtotal($(this));
            break;
          case 'quantity-decrease': //点击了减号
            if (value > 1) {
              countInout.val(value - 1);
              getSubtotal($(this));
            }
            break;
          case 'cart-wastebin': //点击了删除
            var _this = this;
            $('body').popup({
              message: '确认删除',
              id: 'pop-2',
              hideTitle: true,
              onOk: function() {
                _this.parentNode.removeChild(_this);
              }
            });
        }
        getTotal();

      });

    });

    checkAllInputs[0].checked = true;
    checkAllInputs[0].onclick();

  });
  script>
body>

html>

 

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