Map action for ChainyJS

Chainy action that replaces each item in the array with the result of an asynchronous or synchronous iterator

The iterator can operate synchronously:

function (value) {
    return replacementValue
}

Or asynchronously:

function (value, complete) {
    complete(err, replacementValue)
}

Iterators are executed in parallel.

The replacement value (or lack thereof) is used to replace the value of the item in the array the iterator was executing for. Be sure to always explicitly specify a replacement value (even if it is the same as the value), as otherwise the item in the array will be replaced with undefined and you'll be confused.

Example:

require('chainy').create().require('set map log')
    .set([1, 2, 3])
 
    // Synchronous iterator
    .map(function (i) {
        return i * 5;
    }).log()  // [5, 10, 15]
 
    // Asynchronous iterator
    .map(function (i, next) {
        return next(null, i * 10);
    }).log()  // [10, 20, 30]

Install

NPM

Install: npm install --save chainy-plugin-map

Module: require('chainy-plugin-map')

Browserify

Install: npm install --save chainy-plugin-map

Module: require('chainy-plugin-map')

CDN URL: //wzrd.in/bundle/chainy-plugin-map@1.0.5

Ender

Install: ender add chainy-plugin-map

Module: require('chainy-plugin-map')

Editions

This package is published with the following editions:

• chainy-plugin-map aliases chainy-plugin-map/source/index.js
• chainy-plugin-map/source/index.js is Source + ES5 + Require

History

Discover the release history by heading on over to the HISTORY.md file.

Contribute

Discover how you can contribute by heading on over to the CONTRIBUTING.md file.

Backers

Maintainers

These amazing people are maintaining this project:

• Benjamin Lupton — view contributions

Sponsors

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Contributors

These amazing people have contributed code to this project:

• Benjamin Lupton — view contributions

Discover how you can contribute by heading on over to the CONTRIBUTING.md file.

License

Unless stated otherwise all works are:

• Copyright © 2014+ Bevry Pty Ltd

and licensed under:

• MIT License