## math-sign-x
Shim for Math.sign.
### `module.exports(x)` ⇒ \* ⏏
### `math-sign-x` ⇒ number
This method returns the sign of a number, indicating whether the number is positive,
negative or zero. (ES2019)
**Kind**: static property of [math-sign-x](#module_math-sign-x)
**Returns**: number - A number representing the sign of the given argument. If the argument
is a positive number, negative number, positive zero or negative zero, the function will
return 1, -1, 0 or -0 respectively. Otherwise, NaN is returned.
| Param | Type | Description |
| ----- | --------------- | ----------- |
| x | \* | A number. |
**Example**
```js
import mathSign from 'math-sign-x';
console.log(mathSign(3)); // 1
console.log(mathSign(-3)); // -1
console.log(mathSign('-3')); // -1
console.log(mathSign(0)); // 0
console.log(mathSign(-0)); // -0
console.log(mathSign(NaN)); // NaN
console.log(mathSign('foo')); // NaN
console.log(mathSign()); // NaN
```