A cursed Javascript loop to print out array items

cursed-loop.js

/**
 * A simple for loop to print out array items
 */

const TRUE = true;
const FALSE = !TRUE;
const zero = 0;
const one = increment(zero);

const items = ['banana', 'apple', 'eggplant'];

loop(items, function(value) {console.log(value)});

function loop(arr, callback, count, loops) {
  const limit = length(items);

  if (isFalse(count)) {
    count = zero;
  }

  if (isFalse(loops)) {
    loops = zero;
  }

  if (isntFalse(count < limit)) {
    callback(arr[count], loops);
    loop(arr, callback, increment(count), increment(loops));
  }
}

function length(arr) {
  var temp = makeNewArray(arr);
  var x = zero;

  while (isntFalse(temp[zero])) {
    x = increment(x);
    temp = shiftArray(temp);
  };
  
  return x;
}

function makeNewArray(arr) {
  var newArr = [];
  var count = zero;
  var shouldContinue = TRUE;

  do {
    if(arr[count]) {
      newArr[count] = arr[count];
      count = increment(count);
    } else {
      shouldContinue = FALSE;
    }
  } while(isntFalse(shouldContinue));

  return newArr;
}

function increment(value) {
  return value + 1;
}

function decrement(value) {
  return value - one;
}

function isntFalse(value) {
  if (value) {
    return TRUE;
  } 
  
  return FALSE;
}

function isFalse(value) {
  if (!isntFalse(value)) {
    return TRUE;
  }

  return FALSE;
}

function shiftArray(arr) {
  var newArr = [];
  var count = 1;
  var shouldContinue = TRUE;

  do {
    if(arr[count]) {
      newArr[decrement(count)] = arr[count];
      count = increment(count);
    } else {
      shouldContinue = FALSE;
    }
  } while(isntFalse(shouldContinue));
  
  return newArr;
}