https://github.com/mcollina/fastbind

Bind ludicrously fast
https://github.com/mcollina/fastbind

Last synced: 2 months ago
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Bind ludicrously fast

• Host: GitHub
• URL: https://github.com/mcollina/fastbind
• Owner: mcollina
• License: mit
• Created: 2016-01-04T14:42:36.000Z (almost 9 years ago)
• Default Branch: master
• Last Pushed: 2016-01-05T18:15:54.000Z (almost 9 years ago)
• Last Synced: 2024-10-06T01:48:36.585Z (3 months ago)
• Language: JavaScript
• Size: 7.81 KB
• Stars: 7
• Watchers: 4
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# fastbind  [![Build Status](https://travis-ci.org/mcollina/fastbind.svg)](https://travis-ci.org/mcollina/fastbind)

Bind a function to an Object ludicrously fast.

__This is not a replacement for Function#bind, as it does not support

arguments on `bind()` for performance reasons.__ Also, each bound

function is throw away, you cannot reuse them.

It is 250% faster than `bind()`, and 5-10% faster than the fastest code

you can write (see [alternatives](#alternatives)).

You want to use this library when you need to pass some state to a

callback in a super-hot code path.

## Install

```

npm i fastbind --save

```

## Usage

```js

var bind = require('fastbind')(sum)

function State (a) {

  this.a = a

}

function sum (b) {

  var a = this.a

  console.log(a + b)

}

var state = new State(42)

setImmediate(bind(state), 24)

```

## Alternatives

The other best method for achieving similar performance is:

```js

var a = 42

setImmediate(function (b) {

  aa(a, b)

}, 24)

function sum (a, b) {

  console.log(a + b)

}

```

This is 5-10% slower than fastbind. You decide if fastbind is worth it

or not.

## Acknowledgements

fastbind is sponsored by [nearForm](http://nearform.com).

## License

MIT