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Function.prototype.bind replacement that provides an `unbounded` hidden property on the returned bounded function, that contains the original unbounded function

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unbounded

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Function.prototype.bind replacement that provides an unbounded hidden property on the returned bounded function, that contains the original unbounded function

Usage

Complete API Documentation.

This package functions like Function.prototype.bind, however it exposes a hidden unbounded property on the returned bounded function that contains the original unbounded function.

This is very useful as it means you can do:

  • (fn.unbounded || fn).length to always get the correct amount of arguments
  • (fn.unbounded || fn).toString() to always get the source code of any function instead of getting function () { [native code] } for bounded functions
  • fn.bind(firstContext).unbounded.bind(secondContext) to have fn actually bind to the second context, as fn.bind(firstContext).bind(secondContext) only binds to the first context

To have all bounded functions have the unbounded property, use patch:

import { patch } from 'unbounded'
patch()

const context = { hello: 'world' }
function myFunction() {
    return this.hello
}

import { equal } from 'assert'
const boundedFunction = myFunction.bind(context)
equal(boundedFunction(), context.hello, 'context was correct')
equal(boundedFunction.unbounded, myFunction, 'unbounded was correct')

To have only specific functions have the unbounded property, use binder:

import { equal } from 'assert'
import { binder } from 'unbounded'

const context = { hello: 'world' }
function myFunction() {
    return this.hello
}

import { equal } from 'assert'
const boundedFunction = binder.call(myFunction, context)
equal(boundedFunction(), context.hello, 'context was correct')
equal(boundedFunction.unbounded, myFunction, 'unbounded was correct')

Install

  • Install: npm install --save unbounded
  • Import: import * as pkg from ('unbounded')
  • Require: const pkg = require('unbounded')
import * as pkg from 'https://unpkg.com/unbounded@^6.3.1/edition-deno/index.ts'
<script type="module">
    import * as pkg from '//cdn.skypack.dev/unbounded@^6.3.1'
</script>
<script type="module">
    import * as pkg from '//unpkg.com/unbounded@^6.3.1'
</script>
<script type="module">
    import * as pkg from '//dev.jspm.io/[email protected]'
</script>

This package is published with the following editions:

  • unbounded aliases unbounded/index.cjs which uses the Editions Autoloader to automatically select the correct edition for the consumer's environment
  • unbounded/source/index.ts is TypeScript source code with Import for modules
  • unbounded/edition-browsers/index.js is TypeScript compiled against ES2022 for web browsers with Import for modules
  • unbounded/edition-es2022/index.js is TypeScript compiled against ES2022 for Node.js 6 || 8 || 10 || 12 || 14 || 16 || 18 || 20 || 21 with Require for modules
  • unbounded/edition-es5/index.js is TypeScript compiled against ES5 for Node.js 4 || 6 || 8 || 10 || 12 || 14 || 16 || 18 || 20 || 21 with Require for modules
  • unbounded/edition-es2022-esm/index.js is TypeScript compiled against ES2022 for Node.js 12 || 14 || 16 || 18 || 20 || 21 with Import for modules
  • unbounded/edition-types/index.d.ts is TypeScript compiled Types with Import for modules
  • unbounded/edition-deno/index.ts is TypeScript source code made to be compatible with Deno

History

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

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Code

Discover how to contribute via the CONTRIBUTING.md file.

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Function.prototype.bind replacement that provides an `unbounded` hidden property on the returned bounded function, that contains the original unbounded function

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