# Minimum Base 10 Exponent > The minimum base 10 exponent for a normal [double-precision floating-point number][ieee754].
## Usage ```javascript var FLOAT64_MIN_BASE10_EXPONENT = require( '@stdlib/constants/float64/min-base10-exponent' ); ``` #### FLOAT64_MIN_BASE10_EXPONENT The minimum base 10 exponent for a normal [double-precision floating-point number][ieee754]. ```javascript var bool = ( FLOAT64_MIN_BASE10_EXPONENT === -308 ); // returns true ```
## Examples ```javascript var FLOAT64_MIN_BASE10_EXPONENT = require( '@stdlib/constants/float64/min-base10-exponent' ); console.log( FLOAT64_MIN_BASE10_EXPONENT ); // => -308 ```