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