Nick

Use /* */:

/*
  first commented line
  second commented line
*/

This is a method you can apply directly to numbers:

Number.prototype.isEven = function() {
  return this % 2 === 0
}

It returns true if the number is even. And false if it's not even.

You can use it like this:

var num = 18

num.isEven() // returns true

if (number % 2 == 0) {
  // even
} else {
  // odd
}

Just require() it and put it to use:

const _ = require("lodash")

var array = [1, 4, 21, 41]

const [, ...newArray] = array

console.log(newArray) // [4, 21, 41]