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- # function.prototype.name <sup>[![Version Badge][2]][1]</sup>
- [![dependency status][5]][6]
- [![dev dependency status][7]][8]
- [![License][license-image]][license-url]
- [![Downloads][downloads-image]][downloads-url]
- [![npm badge][11]][1]
- An ES2015 spec-compliant `Function.prototype.name` shim. Invoke its "shim" method to shim Function.prototype.name if it is unavailable.
- *Note*: `Function#name` requires a true ES5 environment - specifically, one with ES5 getters.
- This package implements the [es-shim API](https://github.com/es-shims/api) interface. It works in an ES5-supported environment and complies with the [spec](https://www.ecma-international.org/ecma-262/6.0/#sec-get-regexp.prototype.flags).
- Most common usage:
- ## Example
- ```js
- var functionName = require('function.prototype.name');
- var assert = require('assert');
- assert.equal(functionName(function foo() {}), 'foo');
- functionName.shim();
- assert.equal(function foo() {}.name, 'foo');
- ```
- ## Supported engines
- Automatically tested in every minor version of node.
- Manually tested in:
- - Safari: v4 - v15 <sub>(4, 5, 5.1, 6.0.5, 6.2, 7.1, 8, 9.1.3, 10.1.2, 11.1.2, 12.1, 13.1.2, 14.1.2, 15.3, 15.6.1)</sub>
- - Chrome: v15 - v81, v83 - v106<sub>(every integer version)</sub>
- - Note: This includes Edge v80+ and Opera v15+, which matches Chrome
- - Firefox: v3, v3.6, v4 - v105 <sub>(every integer version)</sub>
- - Note: in v42 - v63, `Function.prototype.toString` throws on HTML element constructors, or a Proxy to a function
- - Note: in v20 - v35, HTML element constructors are not callable, despite having typeof `function`
- - IE: v6 - v11<sub>(every integer version</sub>
- - Opera: v11.1, v11.5, v11.6, v12.0, v12.1, v12.14, v12.15, v12.16, v15+ <sub>v15+ matches Chrome</sub>
- ## Tests
- Simply clone the repo, `npm install`, and run `npm test`
- [1]: https://npmjs.org/package/function.prototype.name
- [2]: https://versionbadg.es/es-shims/Function.prototype.name.svg
- [5]: https://david-dm.org/es-shims/Function.prototype.name.svg
- [6]: https://david-dm.org/es-shims/Function.prototype.name
- [7]: https://david-dm.org/es-shims/Function.prototype.name/dev-status.svg
- [8]: https://david-dm.org/es-shims/Function.prototype.name#info=devDependencies
- [11]: https://nodei.co/npm/function.prototype.name.png?downloads=true&stars=true
- [license-image]: https://img.shields.io/npm/l/function.prototype.name.svg
- [license-url]: LICENSE
- [downloads-image]: https://img.shields.io/npm/dm/function.prototype.name.svg
- [downloads-url]: https://npm-stat.com/charts.html?package=function.prototype.name
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