BiosBoy

// Old way
if (user && user.address && user.address.city) {
  console.log(user.address.city);
}

// Modern way with Optional Chaining
console.log(user?.address?.city);

// Nullish Coalescing
const userName = user.name ?? 'Guest';

BiosBoy

enum Direction {
    North,
    East,
    South,
    West
}

let myDirection: Direction = Direction.North;
console.log(myDirection); // Output: 0

BiosBoy

<div className="flex flex-col items-center p-6 bg-white shadow-md rounded-lg">
  <h2 className="text-2xl font-bold mb-2">Card Title</h2>
  <p className="text-gray-700">This is a card description.</p>
</div>


import styles from './Card.module.scss';

<div className={styles.card}>
  <h2 className={styles.title}>Card Title</h2>

BiosBoy

class Singleton {
    constructor() {
        if (Singleton.instance) {
            return Singleton.instance;
        }
        this.data = [];
        Singleton.instance = this;
    }

    getData() {

BiosBoy

const record = #{ name: "Alice", age: 30 };
const tuple = #[1, 2, 3];

console.log(record.name); // Alice
console.log(tuple[0]); // 1


const data = { type: 'user', info: { name: 'Alice', age: 30 } };

const result = match (data) {

BiosBoy

<script async src="analytics.js"></script>
<script defer src="main.js"></script>


<!-- Correct usage -->
<script async src="https://example.com/ads.js"></script>
<script defer src="app.js"></script>


<script type="module" src="main.js"></script>

BiosBoy

const map = new Map();
map.set(1, 'Number one');
map.set('1', 'String one');
map.set(true, 'Boolean true');
console.log(map.get(1)); // Output: Number one


const map = new Map();
map.set('a', 1);
map.set('b', 2);

BiosBoy

"scripts": {
  "start": "node nightly --experimental-strip-types index.ts"
}

BiosBoy

npm install apollo-server-express graphql

const express = require('express');
const { ApolloServer, gql } = require('apollo-server-express');

// Define your type definitions (schema)
const typeDefs = gql`
  type Query {
    hello: String
  }

BiosBoy

const input1 = [1, 2, 5, 3, 4, 7, 8, 6];
const input2 = [2, 5, 1, 3, 4];

const chaos = (arr) => {
  let operationCount = 0;
  let isChaos = false;

  arr.forEach((_, idx) => {
    const nextReversedIdx = arr.length - idx;
    const currentReversedIndex = nextReversedIdx - 1;