# Bias
> The bias of a [double-precision floating-point number's][ieee754] exponent.
## Usage
```javascript
var FLOAT64_EXPONENT_BIAS = require( '@stdlib/constants/float64/exponent-bias' );
```
#### FLOAT64_EXPONENT_BIAS
The bias of a [double-precision floating-point number's][ieee754] exponent.
```javascript
var bool = ( FLOAT64_EXPONENT_BIAS === 1023 );
// returns true
```
## Examples
```javascript
var FLOAT64_EXPONENT_BIAS = require( '@stdlib/constants/float64/exponent-bias' );
console.log( FLOAT64_EXPONENT_BIAS );
// => 1023
```
[ieee754]: https://en.wikipedia.org/wiki/IEEE_754-1985