algos.js

const num1 = 10
const arr1 = [1,2,3]

const isit10 = (num) => {
  if(num = 10){
    return true
  } else {
    return false;
  }
}
//isit10(num1) => true

const add1 = (num) => {
  return num + 1
}
//add1(num1) => 11

const doubleArray = (arr) => {
  for(i = 0; i < arr.length; i++){
    arr[i] *= 2
  }
}
//doubleArray(arr1) => [2,4,6]