Javascript: Array

ARRAY

// homogenious and heterogenious array
var a = 'I am here';
var status = true;

//array -> multiple values
var arr = new Array(); //constructor method
var arr1 = []; //bracket notation
Example:
var hobbies = ['dancing', true, 3423,{ //multiple type data collection values
dance: true,
singing: false
}, []];

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Heroku

Install the Heroku CLI Download and install the Heroku CLI . If you haven't already, log in to your Heroku account and follow the prompts to create a new SSH public key. $ heroku login Create a new Git repository Initialize a git repository in a new or existing directory $ cd my-project/ $ git init $ heroku git:remote -a mernstackblogappdemo Deploy your application Commit your code to the repository and deploy it to Heroku using Git. $ git add . $ git commit -am "make it better" $ git push heroku master Existing Git repository For existing repositories, simply add the heroku remote $ heroku git:remote -a mernstackblogappdemo Source: https://devcenter.heroku.com/articles/heroku-cli

VS Code

1. cmd+shift+p (search feature in vs code) 2. run command (code .) (it will be installed and run code from terminal) # VS CODE - code, debug, extension, extension icon - jshint - prettier-code formatter - beautify - vscode - icons - ESLint - TSLint

Javascript: Object to Array and Array to Object

Output: Final Array [ { mango: 1 }, { apple: 2 }, { banana: 3 }, { orange: 1 }, { watermelon: 1 }, { papaya: 1 } ] Output: Final Object { mango: 1, apple: 2, banana: 3, orange: 1, watermelon: 1, papaya: 1 }

Coding

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