santosh

6.1101,17.592
5.5277,9.1302
8.5186,13.662
7.0032,11.854
5.8598,6.8233
8.3829,11.886
7.4764,4.3483
8.5781,12
6.4862,6.5987
5.0546,3.8166

santosh

package main

import (
	"encoding/json"
	"fmt"
	"net/http"
	"os"
)

const clientID = "<your client id here>"

santosh

package main

import (
	"fmt"
	"math/rand"
	"sync"
	"time"
)

// Worker pool is a collection of threads which are waiting

santosh

• Add concurrency.
• Now deal with it.
• Mutexes, somaphores, context switching
• Check for race condition.

santosh

package main

import "fmt"

type SalaryCalculator interface {
	CalculateSalary() int
}

type Permanent struct {
	empId    int

santosh

docker run -d --name postgres -e POSTGRES_PASSWORD=Pass2020! -v postgres-data:/var/lib/postgresql/data -p 5432:5432 postgres:11-alpine

More env vars at https://hub.docker.com/_/postgres.

Hop into the container:

docker exec -it postgres bash

And use the psql repl.

santosh

I can run those tests on my local machine where I have mongo instance spinned up. But what about CI/CD services like Travis-CI?

How do I approach this?

santosh

function App() {
  const [count, setCount] = React.useState(0)

  function increment() {
    setCount(prevCount => prevCount + 1)
  }

  function decrement() {
    setCount(prevCount => prevCount - 1)
  }

santosh

class App extends React.Component {
  constructor() {
    super()
    this.state = {
      firstName: "",
      lastName: "",
      age: null,
      location: "",
      gender: "",
      dietaryRestrictions: {

santosh

class App extends React.Component {
  constructor() {
    super()
    this.state = {
      character: {}
    }
  }

  componentDidMount() {
    this.setState({ loading: true })