calculator-ts-agustina-fernandez

This library allows you to perfom simple math calculations such as: addition, substraction, multiplication and division

Installation

npm install calculator-ts-agustina-fernandez

Usage

import {Calculator} from "calculator-ts-agustina-fernandez"

let calculator = New Calculator();

How to Create and Publish an NPM Package

Basic SetUp

*Create a Npm user
*Install Node
*Initialize a Git Repository

Steps

• Init your Package:
  npm init -y
• Create a .gitignore file, and ignore node modules and lib folder:
  node_modules
/lib
• Add Typescript as a DevDependency
  npm install --save-dev typescript
• Create a tsconfig.json file:
  {
"compilerOptions":{
"target": "es5",
"module": "commonjs",
"declaration": true,
"outDir": "./lib",
"strict": true
},
"include": ["src"],
"exclude": ["node_modules", "**/__tests__/*"]
}
• Add your code:
  Example:
  export const Greeter = (name: string) => "Hello ${name}";
• In the package.json file add the following:
  "build" : "tsc"
• Run the build command:
  npm run build
• Whitelist the lib folder in the package.json:
  “files”: [“lib/**/*”]
• Add a tslint.json file:
  {
"extends": ["tslint:recommended", "tslint-config-prettier"] }
• Add a .prettierrc file:
  {
"printWidth": 120,
"trailingComma": "all",
"singleQuote": true
}
• Add the lint- and format scripts to package.json:
  "format": "prettier --write \"src/**/*.ts\" \"src/**/*.js\"",
"lint": "tslint -p tsconfig.json"
• Run npm run lint and npm run format:
  npm run lint
npm run format
• Add npm scripts:
  "prepare" : "npm run build"
"prepublishOnly" : "npm test && npm run lint"
"preversion" : "npm run lint"
"version" : "npm run format && git add -A src"
"postversion" : "git push && git push --tags"
• Make sure your package.json have the following:
  "main": "lib/index.js",
"types": "lib/index.d.ts",
• Commit and push your code to git
• Publish your package to NPM:
  npm login
npm publish
• View your package on NPM!