Reading-Notes

Class 02: Express, NPM, TDD, CI/CD

An introduction to NodeJS and Express

• Explain middleware, answer as though I were a non-technical recruiter.

   - middleware is software that enables communication and data management between two applications. 
  

• Express the most popular __ __ __.

   - node web framework
  

• Express is “unopinionated.” What does that mean?

   - web frameworks describe themselves as opinionated and unopinionated. opinionated frameworks have more restrictions when it comes to solving problems outside their domain.Express which is a unopinionated framework tends to be more flexible and lets you brings components together much easier. You can insert any compatible middleware into the request handling in any order.  
  

• What is a module and why is modularity useful to us as developers?

   - modularity allows you to not only have cleaner looking code increasing readability but it allows for efficient testing
  

What is NPM?

• What version of npm are you running on your machine?

  - v16.13.2
  

• What command would you type to install a library/package called ‘jshint’ into your node project?

  • npm i(install) jshint

## What is TDD?

• Explain why tests are important. Please explain as though I were your non technical elder.

  • tests are important because it allows you catch bugs and errors in your code. Also testing allows you to find maintain consistency when it comes to functionality and design.

• What are three expected benefits of testing

  • Reduction in defect rates
  • Improved design
  • Higher technical quality

• Name at lest 2 individual pitfalls and at least 2 team pitfalls commonly encountered while writing tests.

  • Running test for code that doesn’t really matter
  • forgetting to run tests frequently

## CI/CD

• What are three benefits of Continuous Integration?

  • catch bugs
  • reduce conflict
  • integrating everyone’s changes

• What is the difference between Continuos Delivery and Continuous Deployment?

  • Continuos delivery: develope to release at anytime
  • Continuos Deployment: deploy new features immediately

• Explain how GitHub fits into this process assuming the listener comes from a non-technical background

  • github is like the central hub for everyone. it allows you to collaborate with others to maintain code on a project as well as deploy the project.

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