Arrays & Array Methods (map, filter, reduce)

What additional information does map() provide to its callback function beyond the current element?

const items = ['apple', 'banana', 'orange'];
const mappedItems = items.map((item, index, array) => {
  return { name: item, position: index, total: array.length };
});

Only the element value
Element value and index
Element value, index, and original array
map()'s callback function receives three parameters: 1) The current element being processed, 2) The index of the current element, 3) The array map() was called upon, 4) This allows access to both element position and array context, 5) Useful for operations that need array length or relative positioning, 6) Enables complex transformations using array context, 7) All parameters are optional - you can use only what you need, 8) Common pattern in data transformation scenarios.
Element value and array length

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