AWattNY

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

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.

---

AWattNY

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

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.

---

AWattNY

dependencies:
    override:
        - sudo pip install awscli
deployment:
  prod:
    branch: master
    commands:
      - aws s3 sync /home/ubuntu/S3ContinuousDeploy s3://s3awscd --delete

AWattNY

{
  "Version":"2012-10-17",
  "Statement":[
    {
      "Sid":"AddPerm",
      "Effect":"Allow",
      "Principal": "*",
      "Action":["s3:GetObject"],
      "Resource":["arn:aws:s3:::examplebucket/*"]
    }

AWattNY

const isPalindrome = (string) => {
    
  const reverse = string.split('').reverse().join('');
  const isPalindrome = (string === reverse);
    
  const result = isPalindrome ? `${string} is a Palindrome` : `${string} is not a Palindrome`;
    
  return result;
  
};

AWattNY

exports.handler = (event, context, callback) => {
  //some code here
  callback(error, response);
};

AWattNY

var express = require('express');
var app = express();

app.get('/', function(req,res) {
  res.send('hello world');
});

app.listen(3000);

AWattNY

//Test Case 1
//input >>>>>[1,4,2,4, [8, 10, 7], 3, [2, 12]]
// output >>>>> [1, 4, 2, 4, 8, 10, 7, 3, 2, 12]

//Test Case 2
// //input >>>>>[1, 4, 2, 4, [8, [10, 57, 61], 7], 3, [2, 12]]
// output >>>>> [ 1, 4, 2, 4, 8, 10, 57, 61, 7, 3, 2, 12 ]

//Test Case 3
// //input >>>>>[1, 4, 2, 4, [8, [10, [57, 108, 950], 61], 7], 3, [2, 12]]

AWattNY

Latency Comparison Numbers
--------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD