# Negative Infinity
> [Double-precision floating-point][ieee754] negative infinity.
## Usage
```javascript
var FLOAT64_NINF = require( '@stdlib/constants/float64/ninf' );
```
#### FLOAT64_NINF
[Double-precision floating-point][ieee754] negative infinity.
```javascript
var bool = ( FLOAT64_NINF === -Infinity );
// returns true
```
## Examples
```javascript
var FLOAT64_NINF = require( '@stdlib/constants/float64/ninf' );
console.log( FLOAT64_NINF );
// => -Infinity
```
[ieee754]: https://en.wikipedia.org/wiki/IEEE_754-1985