# isNonEnumerableProperty
> Test if an object's own property is non-enumerable.
## Usage
```javascript
var isNonEnumerableProperty = require( '@stdlib/assert/is-nonenumerable-property' );
```
#### isNonEnumerableProperty( value, property )
Returns a `boolean` indicating if a `value` has a non-enumerable `property`.
```javascript
var defineProperty = require( '@stdlib/utils/define-property' );
var obj = {
'foo': 'bar'
};
defineProperty( obj, 'beep', {
'configurable': false,
'enumerable': false,
'writable': true,
'value': 'boop'
});
var bool = isNonEnumerableProperty( obj, 'beep' );
// returns true
bool = isNonEnumerableProperty( obj, 'foo' );
// returns false
```
## Notes
- Value arguments other than `null` or `undefined` are coerced to `objects`.
```javascript
var bool = isNonEnumerableProperty( 'beep', 'length' );
// returns true
```
## Examples
```javascript
var isNonEnumerableProperty = require( '@stdlib/assert/is-nonenumerable-property' );
var bool = isNonEnumerableProperty( [ 'a' ], 'length' );
// returns true
bool = isNonEnumerableProperty( { 'a': 'b' }, 'a' );
// returns false
bool = isNonEnumerableProperty( [ 'a' ], 0 );
// returns false
bool = isNonEnumerableProperty( {}, 'toString' );
// returns false
bool = isNonEnumerableProperty( {}, 'hasOwnProperty' );
// returns false
bool = isNonEnumerableProperty( null, 'a' );
// returns false
bool = isNonEnumerableProperty( void 0, 'a' );
// returns false
bool = isNonEnumerableProperty( { 'null': false }, null );
// returns false
bool = isNonEnumerableProperty( { '[object Object]': false }, {} );
// returns false
```
[@stdlib/assert/is-configurable-property]: https://github.com/stdlib-js/assert/tree/main/is-configurable-property
[@stdlib/assert/is-enumerable-property]: https://github.com/stdlib-js/assert/tree/main/is-enumerable-property
[@stdlib/assert/is-nonconfigurable-property]: https://github.com/stdlib-js/assert/tree/main/is-nonconfigurable-property
[@stdlib/assert/is-nonenumerable-property-in]: https://github.com/stdlib-js/assert/tree/main/is-nonenumerable-property-in
[@stdlib/assert/is-readable-property]: https://github.com/stdlib-js/assert/tree/main/is-readable-property
[@stdlib/assert/is-writable-property]: https://github.com/stdlib-js/assert/tree/main/is-writable-property