thrilok209

// in nodeJs
const axios = require('axios')

async function getCurrentGasPrices() {
    let response = await axios.get('https://ethgasstation.info/json/ethgasAPI.json')
    let prices = {
        low: response.data.safeLow / 10,
        medium: response.data.average / 10,
        high: response.data.fast / 10
    }

vlucas

'use strict';

const crypto = require('crypto');

const ENCRYPTION_KEY = process.env.ENCRYPTION_KEY; // Must be 256 bits (32 characters)
const IV_LENGTH = 16; // For AES, this is always 16

function encrypt(text) {
 let iv = crypto.randomBytes(IV_LENGTH);
 let cipher = crypto.createCipheriv('aes-256-cbc', Buffer.from(ENCRYPTION_KEY), iv);

paulirish

/* bling.js */

window.$ = document.querySelectorAll.bind(document);

Node.prototype.on = window.on = function (name, fn) {
  this.addEventListener(name, fn);
}

NodeList.prototype.__proto__ = Array.prototype;

batandwa

<input type="text" ng-focus="focusCallback($event)" ng-change="changeCallback()">

staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

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This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

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