Reduce for async iterables.
The reduce() method applies a function against an accumulator and each element in the async iterable (from left to right) to reduce it to a single value.
This module is part of Async iterable fun, a complete toolset of modules to work with async iterables.
Reduce to an async iterable to the sum of its elements:
import reduce from("ai-reduce");
const add = (accum, item) => accum + item;
console.log( await reduce([2, 3], add, 1) );
This will output 6
The reduce() method applies a function against an accumulator and each element in the async iterable to reduce it to a single promise.
Parameters
data AsyncIterable The async iterable to reducereducer
Function
Function to execute on each element in the async iterable, taking four
arguments: data - The async iterable reduce was called upon.
accumulator - The accumulator accumulates the callback's return values; it is
the accumulated value previously returned in the last invocation of the
callback, or initialValue, if supplied (see below).
currentValue - The current element being processed in the async iterable.
currentIndex - The index of the current element being processed in the async
iterable. Starts at index 0, if an initialValue is provided, and at index 1
otherwise.
initialValue any Value to use as the first argument to the first call of
the callback. If no initial value is supplied, the first element in the async
iterable will be used. Calling reduce on an empty async iterable without an
initial value is an error.Returns Promise The promise value that results from the reduction.
Higher order function that partially apply reducer and accumulator arguments
to the reduce function.
Parameters
reducer
Function
The reducer argument to partially applyaccumulator any The accumulator argument to partially applyReturns
Function
A reduce unary function that take a data argument
With npm installed, run
npm install --save ai-reduce
MIT
FAQs
Reduce for async iterables.
We found that ai-reduce demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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