Ytdyklly

// functional:

const reachLastIndexOf = (arr, start) => {

  const next = start + arr[start];

  if (start === next || next >= arr.length) return false;

  if (next === arr.length -1) return true;

  return reachLastIndexOf(arr, next);

}



// imperative:

const reachLastIndexOf2 = arr => {

  let start = 0;

  while(start < arr.length) { // I'm tempted to write `while(true)` here

    const next = start + arr[start];

    if (start === next || next >= arr.length) return false;

    if (next === arr.length - 1) return true;

    start = next;

  }

}

// functional:

const reachLastIndexOf = (arr, start) => {

  const next = start + arr[start];

  if (start === next || next >= arr.length) return false;

  if (next === arr.length -1) return true;

  return reachLastIndexOf(arr, next);

}



// imperative:

const reachLastIndexOf2 = arr => {

  let start = 0;

  while(start < arr.length) { // I'm tempted to write `while(true)` here

    const next = start + arr[start];

    if (start === next || next >= arr.length) return false;

    if (next === arr.length - 1) return true;

    start = next;

  }

}

// functional:

const reachLastIndexOf = (arr, start) => {

  const next = start + arr[start];

  if (start === next || next >= arr.length) return false;

  if (next === arr.length -1) return true;

  return reachLastIndexOf(arr, next);

}



// imperative:

const reachLastIndexOf2 = arr => {

  let start = 0;

  while(start < arr.length) { // I'm tempted to write `while(true)` here

    const next = start + arr[start];

    if (start === next || next >= arr.length) return false;

    if (next === arr.length - 1) return true;

    start = next;

  }

}

// functional:

const reachLastIndexOf = (arr, start) => {

  const next = start + arr[start];

  if (start === next || next >= arr.length) return false;

  if (next === arr.length -1) return true;

  return reachLastIndexOf(arr, next);

}



// imperative:

const reachLastIndexOf2 = arr => {

  let start = 0;

  while(start < arr.length) { // I'm tempted to write `while(true)` here

    const next = start + arr[start];

    if (start === next || next >= arr.length) return false;

    if (next === arr.length - 1) return true;

    start = next;

  }

}

Your Answer

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