applyAndEmpty.js

applyAndEmpty.js

// Using a for loop, call the functions in the queue in order with the input number, where the results of each function become the next function’s input. Additionally, the queue should be empty after the function is called.
/* var puzzlers = [
  function(a) { return 8 * a - 10; },
  function(a) { return (a - 3) * (a - 3) * (a - 3); },
  function(a) { return a * a + 4;},
  function(a) { return a % 5;}
];
var start = 2;
applyAndEmpty(2, puzzlers); → 3
*/
function applyAndEmpty(input, queue) {
  let arg = input;
  for (let i = 0; i < queue.length; i++) {
    arg = queue[i](arg);
  }
  queue = [];
  return arg; 
}