# isEnumerableProperty > Test if an object's own property is enumerable.
## Usage ```javascript var isEnumerableProperty = require( '@stdlib/assert/is-enumerable-property' ); ``` #### isEnumerableProperty( value, property ) Returns a `boolean` indicating if a `value` has an enumerable `property`. ```javascript var value = { 'beep': 'boop' }; var bool = isEnumerableProperty( value, 'beep' ); // returns true bool = isEnumerableProperty( value, 'constructor' ); // returns false ```
## Notes - In contrast to the native [Object.prototype.propertyIsEnumerable][mdn-object-property-is-enumerable], this function does **not** throw when provided `null` or `undefined`. Instead, the function returns `false`. ```javascript var bool = isEnumerableProperty( null, 'a' ); // returns false bool = isEnumerableProperty( void 0, 'a' ); // returns false ``` - Value arguments other than `null` or `undefined` are coerced to `objects`. ```javascript var bool = isEnumerableProperty( 'beep', '1' ); // returns true ``` - Property arguments are coerced to `strings`. ```javascript var value = { 'null': false }; var bool = isEnumerableProperty( value, null ); // returns true value = { '[object Object]': false }; bool = isEnumerableProperty( value, {} ); // returns true ```
## Examples ```javascript var isEnumerableProperty = require( '@stdlib/assert/is-enumerable-property' ); var bool = isEnumerableProperty( { 'a': 'b' }, 'a' ); // returns true bool = isEnumerableProperty( [ 'a' ], 0 ); // returns true bool = isEnumerableProperty( [ 'a' ], 'length' ); // returns false bool = isEnumerableProperty( {}, 'toString' ); // returns false bool = isEnumerableProperty( {}, 'hasOwnProperty' ); // returns false bool = isEnumerableProperty( null, 'a' ); // returns false bool = isEnumerableProperty( void 0, 'a' ); // returns false bool = isEnumerableProperty( { 'null': false }, null ); // returns true bool = isEnumerableProperty( { '[object Object]': false }, {} ); // returns true ```