is-accessor-descriptor (1.0.1)
Published 2026-02-24 13:58:15 +00:00 by atheaadmin
Installation
registry=npm install is-accessor-descriptor@1.0.1"is-accessor-descriptor": "1.0.1"About this package
is-accessor-descriptor 
Returns true if a value has the characteristics of a valid JavaScript accessor descriptor.
Examples
var isAccessor = require('is-accessor-descriptor');
var assert = require('assert');
assert.equal(isAccessor({ get: function() {} }), true);
You may also pass an object and property name to check if the property is an accessor:
assert.equal(isAccessor({ bar: {} }, 'bar'), true);
Examples
false when not an object
assert.equal(isAccessor('a'), false);
assert.equal(isAccessor(null), false);
true when the object has valid properties
and the properties all have the correct JavaScript types:
assert.equal(isAccessor({ get() {}, set() {} }), true);
assert.equal(isAccessor({ get() {} }), true);
assert.equal(isAccessor({ set() {} }), true);
false when the object has invalid properties
assert.equal(isAccessor({ get() {}, set() {}, enumerable: 'baz' }), false);
assert.equal(isAccessor({ get() {}, writable: true }), false);
assert.equal(isAccessor({ get() {}, value: true }), false);
false when an accessor is not a function
isAccessor({ get() {}, set: 'baz' });
isAccessor({ get: 'foo', set() {} });
isAccessor({ get: 'foo', bar: 'baz' });
isAccessor({ get: 'foo', set: 'baz' });
//=> false
false when a value is not the correct type
isAccessor({ get() {}, set() {}, enumerable: 'foo' });
isAccessor({ set() {}, configurable: 'foo' });
isAccessor({ get() {}, configurable: 'foo' });
//=> false
Related projects
You might also be interested in these projects:
- is-data-descriptor: Returns true if a value has the characteristics of a valid JavaScript data descriptor.
- is-descriptor: Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for… more
- is-object: Returns true if the value is an object and not an array or null.
Tests
Simply clone the repo, npm install, and run npm test
Dependencies
Dependencies
| ID | Version |
|---|---|
| hasown | ^2.0.0 |
Development Dependencies
| ID | Version |
|---|---|
| @ljharb/eslint-config | ^21.1.0 |
| aud | ^2.0.3 |
| auto-changelog | ^2.4.0 |
| eslint | =8.8.0 |
| evalmd | ^0.0.19 |
| in-publish | ^2.0.1 |
| npmignore | ^0.3.0 |
| nyc | ^10.3.2 |
| safe-publish-latest | ^2.0.0 |
| tape | ^5.7.2 |
Keywords
descriptor
get
getter
is
keys
object
properties
property
set
setter
type
valid
value