# Smallest Subnormal > Smallest positive **denormalized** [double-precision floating-point number][ieee754].
## Usage ```javascript var FLOAT64_SMALLEST_SUBNORMAL = require( '@stdlib/constants/float64/smallest-subnormal' ); ``` ##### FLOAT64_SMALLEST_SUBNORMAL Smallest positive **denormalized** [double-precision floating-point number][ieee754]. ```javascript var bool = ( FLOAT64_SMALLEST_SUBNORMAL === 4.940656458412465e-324 ); // returns true ```
## Examples ```javascript var FLOAT64_SMALLEST_SUBNORMAL = require( '@stdlib/constants/float64/smallest-subnormal' ); console.log( FLOAT64_SMALLEST_SUBNORMAL ); // => ~4.94e-324 ```