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# call-bind <sup>[![Version Badge][npm-version-svg]][package-url]</sup> | |
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[![dependency status][deps-svg]][deps-url] | |
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Robustly `.call.bind()` a function. | |
## Getting started | |
```sh | |
npm install --save call-bind | |
``` | |
## Usage/Examples | |
```js | |
const assert = require('assert'); | |
const callBind = require('call-bind'); | |
const callBound = require('call-bind/callBound'); | |
function f(a, b) { | |
assert.equal(this, 1); | |
assert.equal(a, 2); | |
assert.equal(b, 3); | |
assert.equal(arguments.length, 2); | |
} | |
const fBound = callBind(f); | |
const slice = callBound('Array.prototype.slice'); | |
delete Function.prototype.call; | |
delete Function.prototype.bind; | |
fBound(1, 2, 3); | |
assert.deepEqual(slice([1, 2, 3, 4], 1, -1), [2, 3]); | |
``` | |
## Tests | |
Clone the repo, `npm install`, and run `npm test` | |
[package-url]: https://npmjs.org/package/call-bind | |
[npm-version-svg]: https://versionbadg.es/ljharb/call-bind.svg | |
[deps-svg]: https://david-dm.org/ljharb/call-bind.svg | |
[deps-url]: https://david-dm.org/ljharb/call-bind | |
[dev-deps-svg]: https://david-dm.org/ljharb/call-bind/dev-status.svg | |
[dev-deps-url]: https://david-dm.org/ljharb/call-bind#info=devDependencies | |
[npm-badge-png]: https://nodei.co/npm/call-bind.png?downloads=true&stars=true | |
[license-image]: https://img.shields.io/npm/l/call-bind.svg | |
[license-url]: LICENSE | |
[downloads-image]: https://img.shields.io/npm/dm/call-bind.svg | |
[downloads-url]: https://npm-stat.com/charts.html?package=call-bind | |
[codecov-image]: https://codecov.io/gh/ljharb/call-bind/branch/main/graphs/badge.svg | |
[codecov-url]: https://app.codecov.io/gh/ljharb/call-bind/ | |
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[actions-url]: https://github.com/ljharb/call-bind/actions | |