# Minimum Base 2 Exponent > The minimum biased base 2 exponent for a normal [double-precision floating-point number][ieee754].

## Usage ```javascript var FLOAT64_MIN_BASE2_EXPONENT = require( '@stdlib/constants/float64/min-base2-exponent' ); ``` #### FLOAT64_MIN_BASE2_EXPONENT The minimum biased base 2 exponent for a normal [double-precision floating-point number][ieee754]. ```javascript var bool = ( FLOAT64_MIN_BASE2_EXPONENT === -1022 ); // returns true ```

## Examples ```javascript var FLOAT64_MIN_BASE2_EXPONENT = require( '@stdlib/constants/float64/min-base2-exponent' ); console.log( FLOAT64_MIN_BASE2_EXPONENT ); // => -1022 ```

[ieee754]: https://en.wikipedia.org/wiki/IEEE_754-1985