Skip to main content

Array.fold

foldinitfunction

Documentation​

Combines all the elements of the array, by iteratively applying the passed function with next elements of the array.

In general, the result of [l0, l1, ..., ln].to_array . fold init f is the same as f (...(f (f init l0) l1)...) ln

Arguments​

  • init: The initial value for the fold.
  • function: A function taking two elements and combining them.

Examples​

Compute the sum of all of the elements in an array.​

      [0, 1, 2].to_array . fold 0 (+)