15 lines
314 B
Markdown
15 lines
314 B
Markdown
### isNegativeZero
|
|
|
|
Checks if the given value is a negative zero `-0`.
|
|
|
|
Checks whether a passed value is equal to `0` and if one devided by the value equals `-Infinity`.
|
|
|
|
```js
|
|
const isNegativeZero = val => val === 0 && 1 / val === -Infinity;
|
|
```
|
|
|
|
```js
|
|
isNegativeZero(-0); // true
|
|
isNegativeZero(0); // false
|
|
```
|