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bach

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bach

Compose your async functions with elegance.

  • 2.0.1
  • latest
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  • npm
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1.2M
decreased by-17.68%
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2
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What is bach?

The bach npm package is a tool for composing asynchronous functions in series or parallel. It is particularly useful for orchestrating tasks that need to be executed in a specific order or concurrently, often seen in build processes or complex workflows.

What are bach's main functionalities?

Series Execution

Executes tasks one after another. Each task will start only after the previous one has completed.

const { series } = require('bach');

function task1(cb) { console.log('Task 1'); cb(); }
function task2(cb) { console.log('Task 2'); cb(); }

const tasks = series(task1, task2);
tasks(function(err) { console.log('Done executing tasks in series.'); });

Parallel Execution

Executes tasks simultaneously. All tasks will start at the same time and run concurrently.

const { parallel } = require('bach');

function task1(cb) { console.log('Task 1'); cb(); }
function task2(cb) { console.log('Task 2'); cb(); }

const tasks = parallel(task1, task2);
tasks(function(err) { console.log('Done executing tasks in parallel.'); });

Settled Parallel Execution

Executes tasks in parallel and collects their results. Even if one task fails, the others will continue to execute.

const { parallel } = require('bach');

function task1(cb) { console.log('Task 1'); cb(null, 'result1'); }
function task2(cb) { console.log('Task 2'); cb(null, 'result2'); }

const tasks = parallel(task1, task2);
tasks(function(err, results) { console.log('Results:', results); });

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Package last updated on 29 Aug 2022

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