Spaces:
Configuration error
Configuration error
File size: 2,431 Bytes
5641073 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 |
# 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
|