himeshvats19

var link = function(height = 50, color = 'red', url = 'http://azat.co') {
  ...
}

himeshvats19

var link = function (height, color, url) {
    var height = height || 50
    var color = color || 'red'
    var url = url || 'http://azat.co'
    ...
}

himeshvats19

function createCounter() {
  let counter = 0
  const myFunction = function() {
      counter = counter + 1
      return counter
    }
  return myFunction
}
const increment = createCounter()
const c1 = increment()

himeshvats19

let val = 7
function createAdder() {
  function addNumbers(a, b) {
    let ret = a + b
    return ret
  }
  return addNumbers
}
let adder = createAdder()
let sum = adder(val, 8)

himeshvats19

let val1 = 2
function multiplyThis(n) {
  let ret = n * val1
  return ret
}
let multiplied = multiplyThis(6)
console.log('example of scope:', multiplied)

himeshvats19

{
    "this": 1,
    "is": 1,
    "a": 2,
    "class": 1,
    "of": 1,
    "advance": 1,
    "javascript": 2,
    "from": 1,
    ...

himeshvats19

array.find(function(currentValue, index, arr),thisValue)

himeshvats19

{
  const hello = 'Hello ICFers!'
  console.log(hello) // 'Hello ICFers!'
}

console.log(hello) // Error, hello is not defined

himeshvats19

function sayHello () {
  const hello = 'Hello ICFers!'
  console.log(hello)
}

sayHello() // 'Hello ICFers!'
console.log(hello) // Error, hello is not defined

himeshvats19

function sayHello () {
  const hello = 'Hello CSS-Tricks Reader!'
  console.log(hello)
}

sayHello() // 'Hello CSS-Tricks Reader!'
console.log(hello) // Error, hello is not defined