| 12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667 |
- # define-data-property <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]
- Define a data property on an object. Will fall back to assignment in an engine without descriptors.
- The three `non*` argument can also be passed `null`, which will use the existing state if available.
- The `loose` argument will mean that if you attempt to set a non-normal data property, in an environment without descriptor support, it will fall back to normal assignment.
- ## Usage
- ```javascript
- var defineDataProperty = require('define-data-property');
- var assert = require('assert');
- var obj = {};
- defineDataProperty(obj, 'key', 'value');
- defineDataProperty(
- obj,
- 'key2',
- 'value',
- true, // nonEnumerable, optional
- false, // nonWritable, optional
- true, // nonConfigurable, optional
- false // loose, optional
- );
- assert.deepEqual(
- Object.getOwnPropertyDescriptors(obj),
- {
- key: {
- configurable: true,
- enumerable: true,
- value: 'value',
- writable: true,
- },
- key2: {
- configurable: false,
- enumerable: false,
- value: 'value',
- writable: true,
- },
- }
- );
- ```
- [package-url]: https://npmjs.org/package/define-data-property
- [npm-version-svg]: https://versionbadg.es/ljharb/define-data-property.svg
- [deps-svg]: https://david-dm.org/ljharb/define-data-property.svg
- [deps-url]: https://david-dm.org/ljharb/define-data-property
- [dev-deps-svg]: https://david-dm.org/ljharb/define-data-property/dev-status.svg
- [dev-deps-url]: https://david-dm.org/ljharb/define-data-property#info=devDependencies
- [npm-badge-png]: https://nodei.co/npm/define-data-property.png?downloads=true&stars=true
- [license-image]: https://img.shields.io/npm/l/define-data-property.svg
- [license-url]: LICENSE
- [downloads-image]: https://img.shields.io/npm/dm/define-data-property.svg
- [downloads-url]: https://npm-stat.com/charts.html?package=define-data-property
- [codecov-image]: https://codecov.io/gh/ljharb/define-data-property/branch/main/graphs/badge.svg
- [codecov-url]: https://app.codecov.io/gh/ljharb/define-data-property/
- [actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/ljharb/define-data-property
- [actions-url]: https://github.com/ljharb/define-data-property/actions
|
