async-chunked-array
v1.1.0
Published
Helpers for performing asynchronous operations on large arrays
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async-chunked-array
Helper for performing asynchronous operations on arrays. This module is intended to allow CPU intensive array operations without blocking the event loop.
How to use
npm install --save async-chunked-array
Each method takes the following parameters:
- collection - the array to operate on.
- chunkLength - how many array items to operate on before breaking and allowing the event loop to become free.
- operation - the function to run against the array / array items.
- callback - runs when the current operation completes.
Example
const arrayHelper = require('async-chunked-array')
let longArray = [ ... some long array ... ]
arrayHelper.forEach(longArray, 1000, (item) => {
// do something with item
}, (err) => {
if (err) { throw err }
})
arrayHelper.map(longArray, 1000, (item) => {
return item * 2
}, (err, results) => {
if (err) { throw err }
// results is the transformed array
})
arrayHelper.sort(longArray, 1000, (a, b) => {
return a < b ? -1 : 1
}, (err, sorted) => {
if (err) { throw err }
// sorted is the sorted array
})