Replaces each item in the array with the result of an asynchronous or synchronous iterator
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README.md

Map action for ChainyJS

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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:

Sponsors

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Contributors

These amazing people have contributed code to this project:

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

License

Unless stated otherwise all works are:

and licensed under: