Function toFixed

toFixed(num: number, fractionDigits?: number): string
Formats a value with fixed-point precision and removes insignificant trailing zeroes.
Parameters
- num: number
  Number to format.
- OptionalfractionDigits: number
  Number of digits to keep after the decimal point.
Returns string
Fixed-point string normalized through Number().
Remarks
The value is first normalized with toSafeNumber. The formatted result is converted through Number(), so trailing zeroes generated by Number.prototype.toFixed() are removed.
Example
```
toFixed(0.101, 2);
// => '0.1'
```
Example: Formatting a whole number
```
toFixed(12, 2);
// => '12'
```
Example: Normalizing an invalid number
```
toFixed(Number.NaN, 2);
// => '0'
```
- Defined in util/toFixed.ts:34