reduce
v0.9.6arrow_drop_downFunction
,*
,Array
*
Returns a single item by iterating through the list, successively calling the iterator function and passing it an accumulator value and the current value from the array, and then passing the result to the next call.
The iterator function receives two values: (acc, value). It may use
R.reduced
to shortcut the iteration.
The arguments’ order of reduceRight
's iterator function
is (value, acc).
Note: R.reduce
does not skip deleted or unassigned indices (sparse
arrays), unlike the native Array.prototype.reduce
method. For more details
on this behavior, see:
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/reduce#Description
Dispatches to the reduce
method of the third argument, if present. When
doing so, it is up to the user to handle the R.reduced
shortcuting, as this is not implemented by reduce
.
Function
The iterator function. Receives two values, the accumulator and the current element from the array.
*
The accumulator value.
Array
The list to iterate over.
*
The final, accumulated value.