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Iterator: Reduce

Fold a list into a single value. The sub-graph runs once per element with el, index, and the running accumulator acc exposed by the auto-created Iterator::Entry. Each iteration's new accumulator is read from the auto-created Iterator::Collect.

Mirrors JavaScript's Array.prototype.reduce.

Example
Input array:    [1, 2, 3, 4]
Initial value:  0
Body:           acc + el
Output:         10

Parameters​

This function has no parameters.

Input​

Array—REQUIRED

List to fold over (Array or JSON array).

Initial—REQUIRED
Starting value for the accumulator.

Output​

Result

The final accumulator value after all iterations.