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descartes-sku.js

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笛卡尔乘积算法、用于生成商品 sku

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# descartes-sku.js [![NPM version](https://img.shields.io/npm/v/descartes-sku.js.svg?style=flat-square)](https://www.npmjs.com/package/descartes-sku.js) [![Build Status](https://travis-ci.org/vxhly/descartes-sku.js.svg?branch=master)](https://travis-ci.org/vxhly/descartes-sku.js) [![GitHub forks](https://img.shields.io/github/forks/vxhly/descartes-sku.js.svg)](https://github.com/vxhly/descartes-sku.js/network) [![GitHub stars](https://img.shields.io/github/stars/vxhly/descartes-sku.js.svg)](https://github.com/vxhly/descartes-sku.js/stargazers) [![NPM download](https://img.shields.io/npm/dm/descartes-sku.js.svg?style=flat-square)](https://npmjs.org/package/descartes-sku.js) [![GitHub license](https://img.shields.io/github/license/vxhly/descartes-sku.js.svg)](https://github.com/vxhly/descartes-sku.js/blob/master/LICENSE) ## SKU > Stock Keeping Unit,是库存进出计量的基本单元。 即库存进出计量的基本单元,可以是以件,盒,托盘等为单位. ## 笛卡尔乘积算法 > 笛卡尔乘积是指在数学中,两个集合X和Y的笛卡尓积(Cartesian product),又称直积,表示为X × Y,第一个对象是X的成员而第二个对象是Y的所有可能有序对的其中一个成员。 ## 功能 基于笛卡尔乘积算法基础上编写的一个快捷插件,只需传入需要生成 SKU 属性数组的原始数据即可快捷生成对应的 SKU。 ## download ```bash git clone https://github.com/vxhly/descartes-sku.js.git ``` ### npm ```bash npm install descartes-sku.js --save ``` ### bower ```bash bower install descartes-sku.js --save ``` ## USE > 提供两套算法,推荐使用算法二 ```javascript import { Descartes2SKU2SKU } from './descartes-sku.js' const arr1 = [['a', 'b', 'c']] const descartes1 = new Descartes2SKU(arr1) const result1 = descartes1.descartes() // 算法一 // descartes1.descartes() 算法二 console.log('result1', result1) // => [ ['a'], ['b'], ['c'] ] const arr2 = [['a', 'b', 'c'], [1, 2, 3, 4, 5]] const descartes2 = new Descartes2SKU(arr2) const result2 = descartes2.descartes() // descartes2.descartes() 算法二 console.log('result2', result2) // => [ // [ 'a', 1 ], [ 'a', 2 ], [ 'a', 3 ], [ 'a', 4 ], [ 'a', 5 ], // [ 'b', 1 ], [ 'b', 2 ], [ 'b', 3 ], [ 'b', 4 ], [ 'b', 5 ], // [ 'c', 1 ], [ 'c', 2 ], [ 'c', 3 ], [ 'c', 4 ], [ 'c', 5 ] // ] const arr3 = [['黄色', '绿色', '黑色'], ['XL', 'X', 'XXL', 'L'], ['aa', 'bb']] const descartes3 = new Descartes2SKU(arr3) const result3 = descartes3.descartes() // descartes2.descartes() 算法二 console.log('result3', result3) // => [ // [ '黄色', 'XL', 'aa' ], [ '黄色', 'XL', 'bb' ], [ '黄色', 'X', 'aa' ], // [ '黄色', 'X', 'bb' ], [ '黄色', 'XXL', 'aa' ], [ '黄色', 'XXL', 'bb' ], // [ '黄色', 'L', 'aa' ], [ '黄色', 'L', 'bb' ], [ '绿色', 'XL', 'aa' ], // [ '绿色', 'XL', 'bb' ], [ '绿色', 'X', 'aa' ], [ '绿色', 'X', 'bb' ], // [ '绿色', 'XXL', 'aa' ], [ '绿色', 'XXL', 'bb' ], [ '绿色', 'L', 'aa' ], // [ '绿色', 'L', 'bb' ], [ '黑色', 'XL', 'aa' ], [ '黑色', 'XL', 'bb' ], // [ '黑色', 'X', 'aa' ], [ '黑色', 'X', 'bb' ], [ '黑色', 'XXL', 'aa' ], // [ '黑色', 'XXL', 'bb' ], [ '黑色', 'L', 'aa' ], [ '黑色', 'L', 'bb' ] // ] ``` > 如果需要输出结果带有 key,则传入的必须为对象 ```javascript import { Descartes2SKU } from './descartes-sku.js' const obj = { size: ['XL', 'XXL'], type: ['羊毛'] } const descartes = new Descartes2SKU(obj) const result = descartes.descartes() console.log('result1', result) // => [ { size: 'XL', type: '羊毛' }, { size: 'XXL', type: '羊毛' } ] ``` > 如果需要将 SKU 转换成笛卡儿积形式,则需要使用 SKU2Descartes() ```javascript import { Descartes2SKU2SKU } from './descartes-sku.js' const obj1 = [ { size: 'XL', type: '羊毛' }, { size: 'XXL', type: '羊毛' } ] const descartes1 = new SKU2Descartes(obj1) const result1 = descartes1.sku() console.log('result1', result1) // { size: ['XL', 'XXL'], type: ['羊毛'] } const obj2 = [ { size: 'XL' }, { size: 'XXL' } ] const descartes2 = new SKU2Descartes(obj2) const result2 = descartes2.sku() console.log('result2', result2) // { size: ['XL', 'XXL'] } const obj3 = [] const descartes3 = new SKU2Descartes(obj3) const result3 = descartes3.sku() console.log('result3', result3) // {} const obj4 = [ { color: '黄色', size: 'XL' } ] const descartes4 = new SKU2Descartes(obj4) const result4 = descartes4.sku() console.log('result4', result4) // { color: ['黄色'], size: ['XL'] } ``` > 提供搜索功能,暂时只支持传入对象的形式 ```javascript import { SearchSKU } from './descartes-sku.js' const arr2 = [ { color: '黄色', size: 'XL', type: '羊毛', stock: 99, price: 12, oteh: '测试', test: 'test1' }, { color: '黄色', size: 'XXL', type: '棉', stock: 99, price: 12, oteh: '测试', test: 'test2' }, { color: '黄绿色', size: 'XL', type: '羊毛', stock: 99, price: 12, oteh: '测试', test: 'test1' }, { color: '黄绿色', size: 'XXL', type: '棉', stock: 99, price: 12, oteh: '测试', test: 'test2' } ] const search_sku4 = { color: '黄绿色', size: 'XL' } const descartes4 = new SearchSKU(arr2, search_sku4) const result4 = descartes4.search() console.log('result4', result4) // => { color: '绿色', size: 'XL', type: '羊毛', stock: 99, price: 12, oteh: '测试', test: 'test1' } ``` > 如果以上例子还不过瘾的话可以看 src/test1.js ~ src/test5.js 文件哦 ## test ```bash npm run test1 => 算法一(逐个匹配) npm run test2 => 算法二(递归) npm run test3 => 算法三(对象传入对象输出) npm run test4 => SKU 转 笛卡尔乘积数组(传入数组,数组套数组) npm run test5 => SKU 转 笛卡尔乘积数组(传入数组,数组套对象) npm run test6 => 搜索功能(传入对象) ```