zeptobook

const person = {
    firstname: 'fname',
    lastname: 'lname'
}

console.log(person.firstname);  // ok
console.log(person.address.city); // error: Uncaught TypeError: Cannot read property 'city' of undefined

zeptobook

.article-box{
    margin: 1.5em 2em;
    padding: 2em;
    box-shadow: 0px 0px 6px darkseagreen;
    font-family: 'Helvetica';
    border: solid 2px darkgoldenrod;
}
.title{
    font-size: 2em;
    color: white;

zeptobook

export const query = graphql`
  query {
    allMarkdownRemark {
      totalCount
      edges {
        node {
          id
          frontmatter {
            title
            date

zeptobook

{
   allMarkdownRemark {
     totalCount
     edges {
       node {
         frontmatter {
           title
           date
           author
         }

zeptobook

title	date	author
Gatsby Third Blog Post	2019-09-03	Adesh

This is my third Gatsby blog post.

A brilliant header, clean sidebar, and minimalist footer can go a long way towards making a blog look good. But the one area that’s often overlooked in blog design is the post styling.

zeptobook

title	date	author
Gatsby Second Blog Post	2019-09-02	Adesh

This is my second Gatsby blog post.

Writing a blog post is a little like driving; you can study the highway code (or read articles telling you how to write a blog post) for months, but nothing can prepare you for the real thing like getting behind the wheel and hitting the open road. Or something.

zeptobook

title	date	author
Gatsby First Blog Post	2019-09-01	Adesh

This is my first Gatsby blog post.

You've probably heard how paramount blogging is to the success of your marketing. But it's important that you learn how to start a blog and write blog posts for it so that each article supports your business.

zeptobook

contract ERC20 {
   function totalSupply() constant returns (uint theTotalSupply);
   function balanceOf(address _owner) constant returns (uint balance);
   function transfer(address _to, uint _value) returns (bool success);
   function transferFrom(address _from, address _to, uint _value) returns (bool success);
   function approve(address _spender, uint _value) returns (bool success);
   function allowance(address _owner, address _spender) constant returns (uint remaining);
   event Transfer(address indexed _from, address indexed _to, uint _value);
   event Approval(address indexed _owner, address indexed _spender, uint _value);
}

zeptobook

// clone request and replace 'http://' with 'https://' at the same time
const httpsReq = req.clone({
  url: req.url.replace("http://", "https://")
});

return next.handle(httpsReq);

zeptobook

  ngOnInit() {
    this.http
      .get("http://localhost:4200/cars")
      .subscribe(data => console.log(data));
  }