Client shopping cart operation instance implemented by jquery. cookie,

Client shopping cart operation instance implemented by jquery. cookie,

This document describes the client-side shopping cart operations implemented by jquery. cookie. We will share this with you for your reference. The details are as follows:

// Cart var Cart = function () {this. count = 0; this. total = 0; this. items = new Array () ;}; // var CartItem = function () {this. id = 0; this. name = ""; this. count = 0; this. price = 0 ;}; // var CartHelper = function () {this. cookieName = "yxhCart"; this. clear = function () {var cart = new Cart (); this. save (cart); return cart;}; // Add this to the cart. add = function (id, name, count, price) {var c Art = this. read (); var index = this. find (id); // if the ID already exists, overwrite the quantity if (index>-1) {cart. total-= (cart. items [index]. count * 100) * (cart. items [index]. price * 100)/10000); cart. items [index]. count = count; cart. total + = (cart. items [index]. count * 100) * (cart. items [index]. price * 100)/10000);} else {var item = new CartItem (); item. id = id; item. name = name; item. count = count; item. price = p Rice; cart. items. push (item); cart. count ++; cart. total + = (cart. items [index]. count * 100) * (cart. items [index]. price * 100)/10000);} this. save (cart); return cart;}; // change the quantity this. change = function (id, count) {var cart = this. read (); var index = this. find (id); cart. items [index]. count = count; this. save (cart); return cart;}; // remove from cart this. del = function (id) {var cart = this. read (); var index = This. find (id); if (index>-1) {var item = cart. items [index]; cart. count --; cart. total = cart. total-(item. count * 100) * (item. price * 100)/10000); cart. items. splice (index, 1); this. save (cart) ;}return cart ;}; // find this. find = function (id) {var cart = this. read (); var index =-1; for (var I = 0; I <cart. items. length; I ++) {if (cart. items [I]. id = id) {index = I;} return in Dex ;}; // COOKIE operation this. save = function (cart) {var source = ""; for (var I = 0; I <cart. items. length; I ++) {if (source! = "") {Source + = "| $ |";} source + = this. itemToString (cart. items [I]);} $. cookie (this. cookieName, source) ;}; this. read = function () {// Read the var source set in the COOKIE =$. cookie (this. cookieName); var cart = new Cart (); if (source = null | source = "") {return cart;} var arr = source. split ("| $ |"); cart. count = arr. length; for (var I = 0; I <arr. length; I ++) {var item = this. itemToObject (arr [I]); cart. items. push (item); cart. total + = (item. count * 100) * (item. price * 100)/10000);} return cart;}; this. itemToString = function (item) {return item. id + "|" + escape (item. name) + "|" + item. count + "|" + item. price;}; this. itemToObject = function (str) {var arr = str. split ('|'); var item = new CartItem (); item. id = arr [0]; item. name = unescape (arr [1]); item. count = arr [2]; item. price = arr [3]; return item ;};};

I hope this article will help you with jQuery programming.

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