# Negative Infinity
> [Single-precision floating-point][ieee754] negative infinity.
## Usage
```javascript
var FLOAT32_NINF = require( '@stdlib/constants/float32/ninf' );
```
#### FLOAT32_NINF
[Single-precision floating-point][ieee754] negative infinity.
```javascript
// FLOAT32_NINF is implicitly promoted to a double-precision floating-point number...
var bool = ( FLOAT32_NINF === -Infinity );
// returns true
```
## Examples
```javascript
var FLOAT32_NINF = require( '@stdlib/constants/float32/ninf' );
console.log( FLOAT32_NINF );
// => -Infinity
```
[ieee754]: https://en.wikipedia.org/wiki/IEEE_754-1985