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- # has-proto <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
-
- [![github actions][actions-image]][actions-url]
- [![coverage][codecov-image]][codecov-url]
- [![License][license-image]][license-url]
- [![Downloads][downloads-image]][downloads-url]
-
- [![npm badge][npm-badge-png]][package-url]
-
- Does this environment have the ability to set the [[Prototype]] of an object on creation with `__proto__`?
-
- ## Example
-
- ```js
- var hasProto = require('has-proto');
- var assert = require('assert');
-
- assert.equal(typeof hasProto(), 'boolean');
-
- var hasProtoAccessor = require('has-proto/accessor')();
- if (hasProtoAccessor) {
- assert.equal([].__proto__, Array.prototype);
- } else {
- assert(!('__proto__' in Object.prototype));
- }
-
- var hasProtoMutator = require('has-proto/mutator');
- var obj = {};
- assert('toString' in obj);
-
- obj.__proto__ = null;
- if (hasProtoMutator) {
- assert(!('toString' in obj));
- } else {
- assert('toString' in obj);
- assert.equal(obj.__proto__, null);
- }
- ```
-
- ## Tests
- Simply clone the repo, `npm install`, and run `npm test`
-
- [package-url]: https://npmjs.org/package/has-proto
- [npm-version-svg]: https://versionbadg.es/inspect-js/has-proto.svg
- [deps-svg]: https://david-dm.org/inspect-js/has-proto.svg
- [deps-url]: https://david-dm.org/inspect-js/has-proto
- [dev-deps-svg]: https://david-dm.org/inspect-js/has-proto/dev-status.svg
- [dev-deps-url]: https://david-dm.org/inspect-js/has-proto#info=devDependencies
- [npm-badge-png]: https://nodei.co/npm/has-proto.png?downloads=true&stars=true
- [license-image]: https://img.shields.io/npm/l/has-proto.svg
- [license-url]: LICENSE
- [downloads-image]: https://img.shields.io/npm/dm/has-proto.svg
- [downloads-url]: https://npm-stat.com/charts.html?package=has-proto
- [codecov-image]: https://codecov.io/gh/inspect-js/has-proto/branch/main/graphs/badge.svg
- [codecov-url]: https://app.codecov.io/gh/inspect-js/has-proto/
- [actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/inspect-js/has-proto
- [actions-url]: https://github.com/inspect-js/has-proto/actions
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