# isPositiveZero
> Test if a double-precision floating-point numeric value is positive zero.
## Usage
```javascript
var isPositiveZero = require( '@stdlib/math/base/assert/is-positive-zero' );
```
#### isPositiveZero( x )
Tests if a double-precision floating-point `numeric` value is positive zero.
```javascript
var bool = isPositiveZero( 0.0 );
// returns true
bool = isPositiveZero( -0.0 );
// returns false
```
## Examples
```javascript
var isPositiveZero = require( '@stdlib/math/base/assert/is-positive-zero' );
var bool = isPositiveZero( 0.0 );
// returns true
bool = isPositiveZero( -0.0 );
// returns false
bool = isPositiveZero( 5.0 );
// returns false
bool = isPositiveZero( -1.0 );
// returns false
bool = isPositiveZero( NaN );
// returns false
```