https://github.com/odsod/foreach-batch

Batch processing that keeps the UI responsive. Browserifyable.
https://github.com/odsod/foreach-batch

Last synced: about 1 month ago
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Batch processing that keeps the UI responsive. Browserifyable.

• Host: GitHub
• URL: https://github.com/odsod/foreach-batch
• Owner: odsod
• License: mit
• Created: 2014-03-10T13:19:22.000Z (almost 11 years ago)
• Default Branch: master
• Last Pushed: 2014-04-05T10:43:47.000Z (almost 11 years ago)
• Last Synced: 2024-10-14T06:27:50.383Z (3 months ago)
• Language: JavaScript
• Size: 171 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
forEachBatch

============

[![Build Status](https://travis-ci.org/odsod/foreach-batch.svg)](https://travis-ci.org/odsod/foreach-batch)

A simple combinator for deferred batch processing to keep the UI responsive under long-running

computations.

Syntax

------

```

forEach(arr, callback, batchSize[, progressCallback[, timeoutDelay])

```

Description

-----------

I wrote this to build a big [Lunr.js](https://github.com/olivernn/lunr.js) search index without

blocking the UI and without using WebWorkers.

```javascript

var forEachBatch = require('foreach-batch');

// Process everything at once - will possibly block the UI

stuff.forEach(someExpensiveFunction);

// Process in batches of 10 - giving the UI some breathing room in between batches

forEachBatch(stuff, someExpensiveFunction, 10, function(progress) {

  console.log(progress); // ...and we can keep track of our progress

}, 1000); // ...and we can control how long to wait between batches

```

Installation

------------

```

npm install foreach-batch

```