odino

Coding challenge: cartified!

Hey JavaScript talents, here at namshi.com, we are looking for you! Submit this coding challenge to alex.nadalin@namshi.com and we'll get back to you as soon as possible!

Your task is to implement a basic shopping cart for a website, following these basic rules:

• the cart needs to be implemented as an AngularJS service
• the cart should be retrieved from the localStorage, where it's stored under the key cart
• every time an action is performed on the cart, it should be persisted on the localStorage
• the cart should only know about item IDs and their quantity

odino

SGVsbG8gd29ybGQK

odino

app.get("/my-view", async (req, res) => {
  res.send(render("my-view", {data: await db.getData()}))
})

function render(view, ctx = {}) {
  return _.template(fs.readFileSync(`./views/${view}.html`))(ctx)
}

odino

token = env("GH_TOKEN")
no_more_repos = false
page = 1

while !no_more_repos {
    repos = `curl -s -H "Authorization: token $token" "https://api.github.com/orgs/namshi/repos?page=$page&type=private"`.json()

    if !repos.len() {
        no_more_repos = true
        echo("End of repositories!")

odino

class DumbMap {
  constructor() {
    this.list = []
  }

  get(x) {
    let result

    this.list.forEach(pairs => {
      if (pairs[0] === x) {

odino

a=new AudioContext() // browsers limit the number of concurrent audio contexts, so you better re-use'em

function beep(vol, freq, duration){
  v=a.createOscillator()
  u=a.createGain()
  v.connect(u)
  v.frequency.value=freq
  v.type="square"
  u.connect(a.destination)
  u.gain.value=vol*0.01

odino

class DumbMap {
  constructor() {
    this.list = []
  }

  get(x) {
    let i = hash(x)

    if (!this.list[i]) {
      return undefined

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let m = new DumbMap()

for (x = 0; x < 1000000; x++) {
  m.set(`element${x}`, x)
}

console.log(m.get('element0')) // 999988
console.log(m.get('element1')) // 999988
console.log(m.get('element1000')) // 999987

odino

function divide(int) {
  int = Math.round(int / 2)

  if (int > 10) {
    return divide(int)
  }

  return int
}

odino

let m = new DumbMap()
m.set('x', 1)
m.set('y', 2)

console.time('with very few records in the map')
m.get('I_DONT_EXIST')
console.timeEnd('with very few records in the map')

m = new DumbMap()