rajikaimal

interface PorscheModel {
    engine: string;
    tyreModel: string;
    gears: number;
}

class PorscheCar implements PorscheModel {
    engine: string;
    tyreModel: string;
    gears: number;

rajikaimal

class PorscheCar {  
  constructor(params) {
    this.engine = params.engine;
    this.tyreModel = params.tyreModel;
    this.gears = params.gears;
  }
}

class PorscheCarFactory {  
  createCar(params) {

rajikaimal

function porscheCar(params) {
  this.engine = params.engine;
  this.tyreModel = params.tyreModel;
  this.gears = params.gears;
}

function porscheCarFactory() {
  this.createCar = function(params) {
    return new porscheCar(params);
  }

rajikaimal

const fs = require('fs');

fs.readFile(__filename, () => {
  setTimeout(() => {
    console.log('SetTimeout callback');
  }, 0);
  setImmediate(() => {
    console.log('SetImmediate callback');
  });

rajikaimal

function iter(num) {
  if(num > 5) return;

  setImmediate(() => {
    console.log('SetImmediate');
  });

  process.nextTick(() => { 
    console.log(`NextTick, iteration ${num}`);
    iter(num + 1);

rajikaimal

const fs = require('fs');

fs.readFile(__filename, () => {
  setImmediate(() => {
    console.log('SetImmediate callback');
  });
  
  process.nextTick(() => { console.log('NextTick callback') })
});

rajikaimal

const fs = require("fs");

fs.readFile(__filename, () => {
  setTimeout(() => {
    console.log('SetTimeout callback');
  }, 0);
  setImmediate(() => {
    console.log('SetImmediate callback');
  });
});

rajikaimal

setTimeout(() => {
  console.log('SetTimeout callback');
}, 0);

setImmediate(() => {
  console.log('SetImmediate callback');
});

// Output:
// SetImmediate callback

rajikaimal

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?

rajikaimal

NodeCloud based on the idea of providing a unified API for cloud providers. For GSoC 2017 I've initiated the project from 
scratch and added support for AWS and Google cloud platform (GCP).

Support for following services were added,
- Compute
- Database
- Network
- Storage

Repository - https://github.com/scorelab/nodecloud