Gurusubramaniam gurusubramaniam

## System Design.md

      
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                gurusubramaniam
                / System Design.md
            
            
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              May 13, 2025 13:58
            
          
    System Design Pillars: Practical Checklist

This document outlines practical steps to achieve the four critical pillars in system design: Consistency, Availability, Scalability, and Low Latency.

1. Consistency – How to Achieve It


✅ Pick the right consistency model

→ Strong, eventual, causal — based on use case (e.g. payments need strong consistency)


## grokking_to_leetcode.md

      
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                gurusubramaniam
                / grokking_to_leetcode.md
            
            
              Created
              April 30, 2024 19:04
                — forked from tykurtz/grokking_to_leetcode.md
            
              
                Grokking the coding interview equivalent leetcode problems
              
          
    GROKKING NOTES

I liked the way Grokking the coding interview organized problems into learnable patterns. However, the course is expensive and the majority of the time the problems are copy-pasted from leetcode. As the explanations on leetcode are usually just as good, the course really boils down to being a glorified curated list of leetcode problems.
So below I made a list of leetcode problems that are as close to grokking problems as possible.
Pattern: Sliding Window


https://leetcode.com/problems/maximum-subarray/ # Close enough
https://leetcode.com/problems/minimum-size-subarray-sum/


## html5-video-streamer.js
/*
 * Inspired by: http://stackoverflow.com/questions/4360060/video-streaming-with-html-5-via-node-js
 */

var http = require('http'),
    fs = require('fs'),
    util = require('util');

http.createServer(function (req, res) {
  var path = 'video.mp4';

## Object Iteration
var payload = {
  "ArrayObject":[{
    "phone":  {
    "country_code":"1",
    "national_number":"3045277195"
  },
  "phone_type":"MOBILE"
  }],
  "nestedObject" : {
    "check" : {

## Git push deployment in 7 easy steps.md

      
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                gurusubramaniam
                / Git push deployment in 7 easy steps.md
            
            
              Created
              February 11, 2017 00:47
                — forked from thomasfr/Git push deployment in 7 easy steps.md
            
              
                7 easy steps to automated git push deployments. With small and configurable bash only post-receive hook
              
          
    How-to setup a simple git push deployment

These are my notes basically. At first i created this gist just as a reminder for myself. But feel free to use this for your project as a starting point. If you have questions you can find me on twitter @thomasf https://twitter.com/thomasf
This is how i used it on a Debian Wheezy testing (https://www.debian.org/releases/testing/)
Discuss, ask questions, etc. here https://news.ycombinator.com/item?id=7445545
On the server (example.com)


## Backbone-Example1.js
/**
* Example program for below learnings
*  - Extending class from baseClass of baseClass (Vehicle)
*		-- Validating the required attribute is present or not
*		-- Logging to the user if the car is started or not
*
*  - Setting the value to the new class extended from the  extended Class (Car --> Vehicle --> Backbone baseClass)
*		-- override method start
*
*  - Create new instance for Car (car instance of Car)

## example.html
<!DOCTYPE html>
<html>
<head>
<script class="jsbin" src="http://ajax.googleapis.com/ajax/libs/jquery/1.5/jquery.min.js"></script>
<script class="jsbin" src="http://ajax.microsoft.com/ajax/jquery.validate/1.7/jquery.validate.min.js" type="text/javascript"></script>
<script src="jquery.validate.cpf.js"></script>
<script type="text/javascript">
$(function () {
  var $cpf = $("#id_cpf").attr("name");
  var $params = {debug:false, rules:{}, messages:{}};
	/*
	* Inspired by: http://stackoverflow.com/questions/4360060/video-streaming-with-html-5-via-node-js
	*/

	var http = require('http'),
	fs = require('fs'),
	util = require('util');

	http.createServer(function (req, res) {
	var path = 'video.mp4';
	var payload = {
	"ArrayObject":[{
	"phone": {
	"country_code":"1",
	"national_number":"3045277195"
	},
	"phone_type":"MOBILE"
	}],
	"nestedObject" : {
	"check" : {
	/**
	* Example program for below learnings
	* - Extending class from baseClass of baseClass (Vehicle)
	* -- Validating the required attribute is present or not
	* -- Logging to the user if the car is started or not
	*
	* - Setting the value to the new class extended from the extended Class (Car --> Vehicle --> Backbone baseClass)
	* -- override method start
	*
	* - Create new instance for Car (car instance of Car)
	<!DOCTYPE html>
	<html>
	<head>
	<script class="jsbin" src="http://ajax.googleapis.com/ajax/libs/jquery/1.5/jquery.min.js"></script>
	<script class="jsbin" src="http://ajax.microsoft.com/ajax/jquery.validate/1.7/jquery.validate.min.js" type="text/javascript"></script>
	<script src="jquery.validate.cpf.js"></script>
	<script type="text/javascript">
	$(function () {
	var $cpf = $("#id_cpf").attr("name");
	var $params = {debug:false, rules:{}, messages:{}};