search
HomeWeb Front-endJS TutorialPure jquery implements imitation of Taobao shopping cart settlement_jquery

In this article, all the functions in the shopping cart will be mentioned. Including all-select and single-select amount changes. The amount will also change when the quantity is increased.

Rendering display:

Let’s talk about the general idea:

1. First, calculate the price of a line. This function was mentioned in the previous blog and will not be listed here.

2. Traverse the selected rows and add the values ​​in each row.

3. Assign the value to the total amount and display it. When unchecking or adding or subtracting quantities, the amount will change accordingly.

The following is the specific js part:

<script type="text/javascript">
  $(function(){
    //计算总金额
    function totalMoney(){
      var total_price = 0;
      var total_count = 0;
      $(".d1-input").each(function(){
        if($(this).hasClass('status')) {
          var obj1 = $(this).parent().siblings(".d4").find(".count").val();//获取一行的商品数量
          total_count += parseInt(obj1);
          var obj2= $(this).parent().siblings(".d5").find(".cart-price").text();//获取一行的金额
          total_price += parseInt(obj2);
        }
      });
      $(".item").text(total_count);//将计算出的总金额显示
      $(".total").text(total_price);//将计算出的总数量显示
    }
    //全选
    $(".d-input").toggle( function(){
      $(this).addClass("status");
      $(".sc-mid-list .d1-input").addClass("status");//添加勾选样式
      $(".sc-mid-list").addClass("mouseover");
      totalMoney();
      },
      function(){
      $(this).removeClass("status");
      $(".sc-mid-list .d1-input").removeClass("status");//取消勾选样式
      $(".sc-mid-list").removeClass("mouseover");
      totalMoney();
    });
    // 单选
    $(".d1-input").toggle( function(){
      $(this).addClass("status");//添加勾选样式
      $(this).parents(".sc-mid-list").addClass("mouseover");
      totalMoney();
      },
      function(){
      $(this).removeClass("status");//取消勾选样式
      $(this).parents(".sc-mid-list").removeClass("mouseover");
      totalMoney();
    });
    // 减号样式
    function count(){
      $(".count").each(function(){
        var num = $(this).val();
        if (num == 1) {
          $(this).siblings(".reduce").removeClass("two").addClass("one");
          $(this).siblings(".reduce").attr("disabled","disabled");
        } else {
          $(this).siblings(".reduce").removeClass("one").addClass("two");
        }
      })//根据数量是否为1,改变减号的样式
    }
    // 加
    $(".sc-mid-list .add").click(function(){
      var input = $(this).siblings(".count");
      var obj = $(this).parents(".d4");
      var per = parseFloat(obj.siblings(".d3").find(".per").text());//获取当前一行的单价
      var num = '';
      var price = '';
      input.attr("value", parseInt(input.attr("value")) + 1 );//数量加1
      num = input.attr("value");
      price = num*per;//
      obj.siblings(".d5").find(".cart-price").text(price);
      count();
      totalMoney();
    })
    // 减
    $(".sc-mid-list .reduce").click(function(){
      var input = $(this).siblings(".count");
      var obj = $(this).parents(".d4");
      var per = parseFloat(obj.siblings(".d3").find(".per").text());//获取当前一行的单价
      var num = '';
      var price = '';
      var Val = parseInt(input.attr("value"));
      if(Val <= 1){
        Val = 2;
        }
      input.attr("value", parseInt(Val) - 1 );//数量减1
      num = input.attr("value");
      price = num*per;//
      obj.siblings(".d5").find(".cart-price").text(price);
      count();
    })
  })
</script>

jquery imitates Taobao hanging shopping cart item settlement function - with source code download

View the demo Source code download

Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
JavaScript and the Web: Core Functionality and Use CasesJavaScript and the Web: Core Functionality and Use CasesApr 18, 2025 am 12:19 AM

The main uses of JavaScript in web development include client interaction, form verification and asynchronous communication. 1) Dynamic content update and user interaction through DOM operations; 2) Client verification is carried out before the user submits data to improve the user experience; 3) Refreshless communication with the server is achieved through AJAX technology.

Understanding the JavaScript Engine: Implementation DetailsUnderstanding the JavaScript Engine: Implementation DetailsApr 17, 2025 am 12:05 AM

Understanding how JavaScript engine works internally is important to developers because it helps write more efficient code and understand performance bottlenecks and optimization strategies. 1) The engine's workflow includes three stages: parsing, compiling and execution; 2) During the execution process, the engine will perform dynamic optimization, such as inline cache and hidden classes; 3) Best practices include avoiding global variables, optimizing loops, using const and lets, and avoiding excessive use of closures.

Python vs. JavaScript: The Learning Curve and Ease of UsePython vs. JavaScript: The Learning Curve and Ease of UseApr 16, 2025 am 12:12 AM

Python is more suitable for beginners, with a smooth learning curve and concise syntax; JavaScript is suitable for front-end development, with a steep learning curve and flexible syntax. 1. Python syntax is intuitive and suitable for data science and back-end development. 2. JavaScript is flexible and widely used in front-end and server-side programming.

Python vs. JavaScript: Community, Libraries, and ResourcesPython vs. JavaScript: Community, Libraries, and ResourcesApr 15, 2025 am 12:16 AM

Python and JavaScript have their own advantages and disadvantages in terms of community, libraries and resources. 1) The Python community is friendly and suitable for beginners, but the front-end development resources are not as rich as JavaScript. 2) Python is powerful in data science and machine learning libraries, while JavaScript is better in front-end development libraries and frameworks. 3) Both have rich learning resources, but Python is suitable for starting with official documents, while JavaScript is better with MDNWebDocs. The choice should be based on project needs and personal interests.

From C/C   to JavaScript: How It All WorksFrom C/C to JavaScript: How It All WorksApr 14, 2025 am 12:05 AM

The shift from C/C to JavaScript requires adapting to dynamic typing, garbage collection and asynchronous programming. 1) C/C is a statically typed language that requires manual memory management, while JavaScript is dynamically typed and garbage collection is automatically processed. 2) C/C needs to be compiled into machine code, while JavaScript is an interpreted language. 3) JavaScript introduces concepts such as closures, prototype chains and Promise, which enhances flexibility and asynchronous programming capabilities.

JavaScript Engines: Comparing ImplementationsJavaScript Engines: Comparing ImplementationsApr 13, 2025 am 12:05 AM

Different JavaScript engines have different effects when parsing and executing JavaScript code, because the implementation principles and optimization strategies of each engine differ. 1. Lexical analysis: convert source code into lexical unit. 2. Grammar analysis: Generate an abstract syntax tree. 3. Optimization and compilation: Generate machine code through the JIT compiler. 4. Execute: Run the machine code. V8 engine optimizes through instant compilation and hidden class, SpiderMonkey uses a type inference system, resulting in different performance performance on the same code.

Beyond the Browser: JavaScript in the Real WorldBeyond the Browser: JavaScript in the Real WorldApr 12, 2025 am 12:06 AM

JavaScript's applications in the real world include server-side programming, mobile application development and Internet of Things control: 1. Server-side programming is realized through Node.js, suitable for high concurrent request processing. 2. Mobile application development is carried out through ReactNative and supports cross-platform deployment. 3. Used for IoT device control through Johnny-Five library, suitable for hardware interaction.

Building a Multi-Tenant SaaS Application with Next.js (Backend Integration)Building a Multi-Tenant SaaS Application with Next.js (Backend Integration)Apr 11, 2025 am 08:23 AM

I built a functional multi-tenant SaaS application (an EdTech app) with your everyday tech tool and you can do the same. First, what’s a multi-tenant SaaS application? Multi-tenant SaaS applications let you serve multiple customers from a sing

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
1 months agoBy尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. Best Graphic Settings
1 months agoBy尊渡假赌尊渡假赌尊渡假赌
Will R.E.P.O. Have Crossplay?
1 months agoBy尊渡假赌尊渡假赌尊渡假赌

Hot Tools

PhpStorm Mac version

PhpStorm Mac version

The latest (2018.2.1) professional PHP integrated development tool

SublimeText3 Linux new version

SublimeText3 Linux new version

SublimeText3 Linux latest version

VSCode Windows 64-bit Download

VSCode Windows 64-bit Download

A free and powerful IDE editor launched by Microsoft

ZendStudio 13.5.1 Mac

ZendStudio 13.5.1 Mac

Powerful PHP integrated development environment

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor