[Javascript] How to write a Javascript libarary

Create package.json file

//npm settings
npm set init-author-name 'username'
npm set init-author-email 'username@gmail.com'
npm set init-author-url 'http://username.com'
npm set save-exact true

//create package.json
npm init

Pubish to github and tag it

git status
git add -A
git commit -m "commit message"
git push
git tag 1.0.0
git push --tags

Publish to npm

npm publish
npm info <project_name>

Release a new version

1. according to the changes to change the version in package.json
2. publish to git
3. publish tag to git
4. npm publish
5. npm info

Publishing a beta version

1. In package.json: "version": "1.2.0-beta.0",
2. publish to git
3. tag it in git
4. npm publish --tag beta
5. npm info

//install
npm install starwars-ns@beta
npm install starwars-ns@1.2.0-beta.0

Mocha, chai testing:

var expect = require('chai').expect;
var starWars = require('./index');

describe('starwars-names', function() {
    describe('all', function(){
        //check return type
        it('should be an array of strings', function(){
            expect(starWars.all).to.satisfy(isArrayOfString);
            
            function isArrayOfString(array){
                return array.every(function(item){
                    return typeof item === 'string';
                });
            }
        });
        
        //ccheck one of the value
        it('should includ Asajj Ventress', function(){
            expect(starWars.all).to.include('Asajj Ventress');
        });
    });
    
    describe('random', function(){
        it('should return one of the starwar names form all', function(){
            expect(starWars.all).to.include(starWars.random());
        })
    });
});

semantic-release:

npm install -g semantic-release-cli //Install

//RUN
semantic-release-cli setup

Writing conventional commits with commitizen:

npm install -D cz-conventional-changelog
npm install -D commitizen

Add script:

"commit": "git-cz"

Add Config: 

  "czConfig": {
      "path": "node_modules/cz-conventional-changelog"
  },

Add Badges:

![Downloads](https://img.shields.io/npm/dm/angular-md-table.svg)
![npm](https://img.shields.io/npm/v/angular-md-table.svg)
![node](https://img.shields.io/node/v/angular-md-table.svg)

http://shields.io/