upning

const http = require('http');

const hostname = '127.0.0.1';
const port = 3000;

const server = http.createServer((req, res) => {
    res.statusCode = 200;
    res.setHeader('Content-Type', 'text/plain');
    res.end('Hello World\n');
});

upning

============
# install web3py first
!pip install web3
from eth_account import Account
import secrets
acct = None

expect = "000"

while acct is None or acct.address[2:2+len(expect)] != expect:

upning

import glob

read_files = glob.glob("*.md")

with open("new-file.md", "wb") as outfile:
  for f in read_files:
    with open(f, "rb") as infile:
      outfile.write(infile.read())

upning

// Asynchronous functions
// Code goes here
const shortenUrl = async () => {
	const urlToShorten = inputField.value;
 	const data = JSON.stringify({destination: urlToShorten});
    try {
      const response = await fetch('https://api-to-call.com/endpoint', {
        method: 'POST',
        body: data,
        headers: {

upning

/// https://stackoverflow.com/questions/5963182/how-to-remove-spaces-from-a-string-using-javascript
str = str.replace(/\s+/g, '');

// \s is the regex for "whitespace", and g is the "global" flag, meaning match ALL \s (whitespaces).
// A great explanation for + can be found https://stackoverflow.com/questions/5964373/is-there-a-difference-between-s-g-and-s-g

// Alternative
var a = b = " /var/www/site/Brand new   document.docx ";

console.log( a.split(' ').join('') );

upning

/// https://stackoverflow.com/questions/21076732/how-to-get-the-last-item-in-a-javascript-value-object-with-a-for-loop

// blind iteration
Object.keys(obj).forEach(function(key, i) {
  var value = obj[key];
  // do what you need to here, with index i as position information.
  // Note that you cannot break out of this iteration, although you
  // can of course use ".some()" rather than ".forEach()" for that.
});

upning

// async await GET

const getData = async () => {
  try {
    const response = await fetch('https://api-to-call.com/endpoint');
    if (response.ok) {
      const jsonResponse = await response.json();
      // Code to execute with jsonResponse
    }
    throw new Error('Request failed!');

upning

// fetch POST

fetch('http://api-to-call.com/endpoint', {
  method: 'POST',
  headers: {
    'Content-type': 'application/json',
    'apikey': apiKey
  }
  body: JSON.stringify({id: '200'})
}).then(response => {

upning

// fetch GET

fetch('http://api-to-call.com/endpoint').then(response => { // Sends request
	if (response.ok) {
		return response.json(); // converts response object to JSON
  	}
  	throw new Error('Request failed!');
}, networkError => console.log(networkError.message)
).then(jsonResponse => {
	// Code to execute with jsonResponse

upning

// https://stackoverflow.com/questions/27678052/usage-of-the-backtick-character-in-javascript
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Template_literals
let person = {name: 'RajiniKanth', age: 68, greeting: 'Thalaivaaaa!' };

// Usual HTML String
let usualHtmlStr = "<p>My name is " + person.name + ",</p>\n" +
  "<p>I am " + person.age + " old</p>\n" +
  "<strong>\"" + person.greeting + "\" is what I usually say</strong>";

// New HTML String