# String Unicode Constants > Standard library string unicode constants.
## Usage ```javascript var constants = require( '@stdlib/constants/unicode' ); ``` #### constants Standard library string unicode constants. ```javascript var ns = constants; // returns {...} ```
- [`MAX_BMP`][@stdlib/constants/unicode/max-bmp]: maximum Unicode code point in the Basic Multilingual Plane (BMP). - [`MAX`][@stdlib/constants/unicode/max]: maximum Unicode code point.
## Examples ```javascript var objectKeys = require( '@stdlib/utils/keys' ); var constants = require( '@stdlib/constants/unicode' ); console.log( objectKeys( constants ) ); ```