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65 lines
2.0 KiB
65 lines
2.0 KiB
4 weeks ago
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# call-bind <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
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[![github actions][actions-image]][actions-url]
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[![coverage][codecov-image]][codecov-url]
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[![dependency status][deps-svg]][deps-url]
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[![dev dependency status][dev-deps-svg]][dev-deps-url]
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[![License][license-image]][license-url]
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[![Downloads][downloads-image]][downloads-url]
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[![npm badge][npm-badge-png]][package-url]
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Robustly `.call.bind()` a function.
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## Getting started
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```sh
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npm install --save call-bind
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```
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## Usage/Examples
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```js
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const assert = require('assert');
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const callBind = require('call-bind');
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const callBound = require('call-bind/callBound');
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function f(a, b) {
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assert.equal(this, 1);
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assert.equal(a, 2);
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assert.equal(b, 3);
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assert.equal(arguments.length, 2);
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}
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const fBound = callBind(f);
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const slice = callBound('Array.prototype.slice');
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delete Function.prototype.call;
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delete Function.prototype.bind;
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fBound(1, 2, 3);
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assert.deepEqual(slice([1, 2, 3, 4], 1, -1), [2, 3]);
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```
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## Tests
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Clone the repo, `npm install`, and run `npm test`
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[package-url]: https://npmjs.org/package/call-bind
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[npm-version-svg]: https://versionbadg.es/ljharb/call-bind.svg
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[deps-svg]: https://david-dm.org/ljharb/call-bind.svg
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[deps-url]: https://david-dm.org/ljharb/call-bind
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[dev-deps-svg]: https://david-dm.org/ljharb/call-bind/dev-status.svg
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[dev-deps-url]: https://david-dm.org/ljharb/call-bind#info=devDependencies
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[npm-badge-png]: https://nodei.co/npm/call-bind.png?downloads=true&stars=true
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[license-image]: https://img.shields.io/npm/l/call-bind.svg
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[license-url]: LICENSE
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[downloads-image]: https://img.shields.io/npm/dm/call-bind.svg
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[downloads-url]: https://npm-stat.com/charts.html?package=call-bind
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[codecov-image]: https://codecov.io/gh/ljharb/call-bind/branch/main/graphs/badge.svg
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[codecov-url]: https://app.codecov.io/gh/ljharb/call-bind/
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[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/ljharb/call-bind
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[actions-url]: https://github.com/ljharb/call-bind/actions
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