# shopback_seo_challenge > Let Node.js Developer use this package to scan a HTML file and show all of the SEO defects Latest version **1.0.3** (published 2018-11-04) · ISC license · 0 weekly downloads ## Install ```sh npm install shopback_seo_challenge pnpm add shopback_seo_challenge yarn add shopback_seo_challenge bun add shopback_seo_challenge ``` ## Health **Score 15/100 (F)** — status: abandoned. Positive: no vulnerabilities. Warnings: low downloads; no types; no esm support. Negative: abandoned; low maintenance score. ## Facts | | | |---|---| | Version | 1.0.3 | | Published | 2018-11-04 | | First published | 2018-11-04 | | Weekly downloads | 0 | | License | ISC | | TypeScript types | none | | Module format | CommonJS | | Dependencies | 2 | | Unpacked size | 12.2 KB | | Known vulnerabilities | 0 | | Install scripts | no | | Author | Weiti Kuo | | Maintainers | weiti.kuo | | Keywords | Shopback, Challenge | ## Links - npm: https://www.npmjs.com/package/shopback_seo_challenge - npm.io page: https://npm.io/package/shopback_seo_challenge ## Dependencies (2) - [cheerio](https://npm.io/package/cheerio.md) ^1.0.0-rc.2 - [file-exists](https://npm.io/package/file-exists.md) ^5.0.1 ## Recent versions - 1.0.3 (latest) — 2018-11-04 - 1.0.2 — 2018-11-04 - 1.0.1 — 2018-11-04 - 1.0.0 — 2018-11-04 ## README

ShopBack Node.js Code Challenge

### Sample Code ```js "use strict"; const fs = require("fs"); var shopback_seo_challenge = require("shopback_seo_challenge"); var seoParser = shopback_seo_challenge.seoParser; var ruleManager = shopback_seo_challenge.ruleManager; // Define SEO Rules: seoParser.addSeoRule(new ruleManager.tagWithoutAttributeRule("img", "alt")); seoParser.addSeoRule(new ruleManager.tagWithoutAttributeRule("a", "rel")); seoParser.addSeoRule(new ruleManager.tagWithoutChildTagRule("head", "title")); seoParser.addSeoRule(new ruleManager.tagWithoutChildTagAndAttributeRule("head", "meta", "name", "descriptions")); seoParser.addSeoRule(new ruleManager.tagWithoutChildTagAndAttributeRule("head", "meta", "name", "keywords")); seoParser.addSeoRule(new ruleManager.tagWithoutChildTagAndAttributeRule("head", "meta", "name", "robots")); seoParser.addSeoRule(new ruleManager.tagExceedsMaxRula("strong", 15)); seoParser.addSeoRule(new ruleManager.tagExceedsMaxRula("H1", 1)); // 1. Set Input Format 2. Detect SEO defects 3. Set Output Format (async function () { // 1. Set Input Format: (1)loadFile() (2)loadStream() //var html = seoParser.loadFile('./test_files/test.html'); //var html = seoParser.loadFile('./test_files/valid.html'); var html = seoParser.loadFile('./test_files/invalid.html'); //var html = await seoParser.loadStream(fs.createReadStream('./test_files/invalid.html')); // 2. Get defect list by the defined SEO rules var defects = seoParser.detectSeoDefect(html); // 3. Set Output Format: (1)writeToConsole() (2)writeToFile() (3)writeToStream seoParser.writeToConsole(defects); //seoParser.writeToFile(defects, "./test_files/invalid.log"); //seoParser.writeToStream(defects, fs.createWriteStream("./test_files/invalidStream.log")); })(); ``` ### Sample Input ```html Test

Hello World!

Link1 Link2 Link3 strong1 strong2 strong3 strong4 strong5 strong6 strong7 strong8 strong9 strong10 strong11 strong12 strong13 strong14 strong15 strong16

h1

h2

``` ### Sample Output ``` In this HTML, there are totally 8 SEO defects: 0. There are 1 tag without alt attribute 1. There are 1 tag without rel attribute 2. This HTML without tag in <head> tag 3. This HTML without <meta name="descriptions"> tag in <head> tag 4. This HTML without <meta name="keywords"> tag in <head> tag 5. This HTML without <meta name="robots"> tag in <head> tag 6. This HTML have more than 15 <strong> tag 7. This HTML have more than 1 <H1> tag ``` ### Installation > npm i shopback_seo_challenge --- _Source: https://npm.io/package/shopback_seo_challenge · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._