# hasProperty > Test if an object has a specified property, either own or inherited.
## Usage ```javascript var hasProp = require( '@stdlib/assert/has-property' ); ``` #### hasProp( value, property ) Returns a `boolean` indicating if a `value` has a specified `property`, either own or inherited. ```javascript var value = { 'beep': 'boop' }; var bool = hasProp( value, 'beep' ); // returns true bool = hasProp( value, 'hasOwnProperty' ); // returns true bool = hasProp( value, 'bap' ); // returns false ```
## Notes - The function does **not** throw when provided `null` or `undefined`. Instead, the function returns `false`. ```javascript var bool = hasProp( null, 'a' ); // returns false bool = hasProp( void 0, 'a' ); // returns false ``` - Value arguments other than `null` or `undefined` are coerced to `objects`. ```javascript var bool = hasProp( 'beep', 'length' ); // returns true ``` - Non-symbol property arguments are coerced to `strings`. ```javascript var value = { 'null': false }; var bool = hasProp( value, null ); // returns true value = { '[object Object]': false }; bool = hasProp( value, {} ); // returns true ```
## Examples ```javascript var hasProp = require( '@stdlib/assert/has-property' ); var bool = hasProp( { 'a': 'b' }, 'a' ); // returns true bool = hasProp( {}, 'hasOwnProperty' ); // returns true bool = hasProp( { 'a': 'b' }, 'c' ); // returns false bool = hasProp( { 'a': 'b' }, null ); // returns false bool = hasProp( null, 'a' ); // returns false bool = hasProp( void 0, 'a' ); // returns false bool = hasProp( { 'null': false }, null ); // returns true bool = hasProp( { '[object Object]': false }, {} ); // returns true ```