📖 alx-backend-javascript

📃 Topics Covered

1. Introduction to JavaScript ES6 and Node.js.
2. ES6 Data strucutures.

💻 Projects

0x00. ES6 Basics

Introduction to Javascript ES6 (ECMAScript 2015). Setup and using: Babel, Eslint and Jest.

0x01. ES6 Promises

Introduction to JavaScript Asynchoronous Programming using Promises.

0x03-ES6_data_manipulation

Introduction to Javascript ES6 Data Strucutre Types and Data Manipulation.

👉 Go to project

0x04. Typescript

Introduction to Typescript.

🔧 Project setup.

# Create project directory and readme.
mkdir ./0x04-TypeScript/
touch ./0x04-TypeScript/README.md

👉 Go to project

0x02. Session authentication

The project is about implementing a session authentication mechanism without installing any other module. The learning objectives of the project include;

• Understanding authentication, session authentication.
• Cookies, sending cookies, and parsing cookies.

🔧 Project setup.

# Create project directory and readme.
mkdir ./0x02-Session_authentication/
touch ./0x02-Session_authentication/README.md
cd 0x02-Session_authentication

👉 Go to project

0x05. NodeJS Basics

This project involves learning NodeJS basics concept covered;

1. Using NodeJS modules.
2. Reading files.
3. Creating HTTP servers.
4. Using Express JS.
5. Testing with Mocha.
6. Using Nodemon.

🔧 Project setup.

# Create project directory and readme.
mkdir ./0x05-Node_JS_basic/
touch ./0x05-Node_JS_basic/README.md
cd 0x05-Node_JS_basic
touch package.json database.csv babel.config.js .eslintrc.js
echo'{ "name": "node_js_basics", "version": "1.0.0", "description": "", "main": "index.js", "scripts": { "lint": "./node_modules/.bin/eslint", "check-lint": "lint [0-9]*.js", "test": "./node_modules/mocha/bin/mocha --require babel-register --exit", "dev": "nodemon --exec babel-node --presets babel-preset-env ./server.js ./database.csv" }, "author": "", "license": "ISC", "dependencies": { "chai-http": "^4.3.0", "express": "^4.17.1" }, "devDependencies": { "babel-cli": "^6.26.0", "babel-preset-env": "^1.7.0", "nodemon": "^2.0.2", "eslint": "^6.4.0", "eslint-config-airbnb-base": "^14.0.0", "eslint-plugin-import": "^2.18.2", "eslint-plugin-jest": "^22.17.0", "chai": "^4.2.0", "mocha": "^6.2.2", "request": "^2.88.0", "sinon": "^7.5.0" }}'>> package.json
echo"module.exports = { presets: [ [ '@babel/preset-env', { targets: { node: 'current', }, }, ], ],};">> babel.config.js
echo"firstname,lastname,age,fieldJohann,Kerbrou,30,CSGuillaume,Salou,30,SWEArielle,Salou,20,CSJonathan,Benou,30,CSEmmanuel,Turlou,40,CSGuillaume,Plessous,35,CSJoseph,Crisou,34,SWEPaul,Schneider,60,SWETommy,Schoul,32,SWEKatie,Shirou,21,CS">> database.csv
echo"module.exports = { env: { browser: false, es6: true, jest: true, }, extends: [ 'airbnb-base', 'plugin:jest/all', ], globals: { Atomics: 'readonly', SharedArrayBuffer: 'readonly', }, parserOptions: { ecmaVersion: 2018, sourceType: 'module', }, plugins: ['jest'], rules: { 'max-classes-per-file': 'off', 'no-underscore-dangle': 'off', 'no-console': 'off', 'no-shadow': 'off', 'no-restricted-syntax': [ 'error', 'LabeledStatement', 'WithStatement', ], }, overrides:[ { files: ['*.js'], excludedFiles: 'babel.config.js', } ]};">> .eslintrc.js
# Install depedencies
npm install

👉 Go to project

0x03. Queuing System in JS

This project involves how to use Redis and implementing Kue as a queue system. The learning objectives include;

1. Running a Redis server.
2. Using a Redis client for basic operations and with Node JS.
3. Storing hash values in Redis.
4. Dealing with async operations.
5. Building a basic Express app interacting with a Redis server.
6. Building a basic Express app interacting with a Redis server and queue.

🔧 Project setup.

# Create project directory and readme.
mkdir ./0x03-queuing_system_in_js/
touch ./0x03-queuing_system_in_js/README.md
cd 0x03-queuing_system_in_js
touch package.json .babelrc
echo'{ "name": "queuing_system_in_js", "version": "1.0.0", "description": "", "main": "index.js", "scripts": { "lint": "./node_modules/.bin/eslint", "check-lint": "lint [0-9]*.js", "test": "./node_modules/.bin/mocha --require @babel/register --exit", "dev": "nodemon --exec babel-node --presets @babel/preset-env" }, "author": "", "license": "ISC", "dependencies": { "chai-http": "^4.3.0", "express": "^4.17.1", "kue": "^0.11.6", "redis": "^2.8.0" }, "devDependencies": { "@babel/cli": "^7.8.0", "@babel/core": "^7.8.0", "@babel/node": "^7.8.0", "@babel/preset-env": "^7.8.2", "@babel/register": "^7.8.0", "eslint": "^6.4.0", "eslint-config-airbnb-base": "^14.0.0", "eslint-plugin-import": "^2.18.2", "eslint-plugin-jest": "^22.17.0", "nodemon": "^2.0.2", "chai": "^4.2.0", "mocha": "^6.2.2", "request": "^2.88.0", "sinon": "^7.5.0" } }'>> package.json
echo'{ "presets": [ "@babel/preset-env" ]}'>> .babelrc
# Install depedencies.
npm install

👉 Go to project

0x06. Unittests in JS

This project involves learning how to use Mocha to write a test suite, different assertion libraries such as Node or Chai, presenting long test suites, using spies and stubs, hooks and unit testing with Async functions.

🔧 Project setup.

# Create project directory and readme.
mkdir ./0x03-queuing_system_in_js/
touch ./0x03-queuing_system_in_js/README.md
cd 0x03-queuing_system_in_js
touch package.json .babelrc
echo'{ "name": "queuing_system_in_js", "version": "1.0.0", "description": "", "main": "index.js", "scripts": { "lint": "./node_modules/.bin/eslint", "check-lint": "lint [0-9]*.js", "test": "./node_modules/.bin/mocha --require @babel/register --exit", "dev": "nodemon --exec babel-node --presets @babel/preset-env" }, "author": "", "license": "ISC", "dependencies": { "chai-http": "^4.3.0", "express": "^4.17.1", "kue": "^0.11.6", "redis": "^2.8.0" }, "devDependencies": { "@babel/cli": "^7.8.0", "@babel/core": "^7.8.0", "@babel/node": "^7.8.0", "@babel/preset-env": "^7.8.2", "@babel/register": "^7.8.0", "eslint": "^6.4.0", "eslint-config-airbnb-base": "^14.0.0", "eslint-plugin-import": "^2.18.2", "eslint-plugin-jest": "^22.17.0", "nodemon": "^2.0.2", "chai": "^4.2.0", "mocha": "^6.2.2", "request": "^2.88.0", "sinon": "^7.5.0" } }'>> package.json
echo'{ "presets": [ "@babel/preset-env" ]}'>> .babelrc
# Install depedencies.
npm install

👉 Go to project

👨 Author and Credits.

This project was done by SE. Moses Mwangi. Feel free to get intouch with me;

📱 WhatsApp +254115227963

📧 Email moses.soft.eng@gmail.com

👍 A lot of thanks to ALX-Africa Software Engineering program for the project requirements.