Typical workflow

• clone package
• npm install by package.json
• npm run dev mostly by webconfig

run and dev are npm scripts defined in package.json

There can be many other task e.g. for running test, pritty prints for source code etc.

Install package node_modules and add into package.json as dependency.

  > npm i package-name

Install package node_modules and add into package.json as developer dependency

  > npm i --save-dev package-name
  

Install package in particular version

  > npm i --save-dev package-name@^3.2.1
  

Uninstall package

  > npm un package-name
  

Show version of installed package

  > npm ls package-name
  

For semantic versionning see npm documentation

For run project local scripts from node_modules dir, use npx e.g.

Runs webpack from project local node_modules for building the project

 > npx webpack 

Runs jest from project local node_modules for running test suite

 > npx jest 

Webpack is responsible for module loading. Modules are essential concept of modern javascript.

Typescript is superset of javascript, which is compiled into real javascript e.g. es5 - 'classic' javascript e.g. without classes, es6 classes, const variables, esnext. Information about typesript