Function convertUnit

convertUnit(
    value: number,
    fromUnit: string,
    toUnit: string,
    options?: ConvertUnitOptions,
): number | null
Converts a value from one unit to another.
Parameters
- value: number
  The numeric value to convert.
- fromUnit: string
  The unit to convert from (unit ID, short, plural, or alternate spelling).
- toUnit: string
  The unit to convert to (unit ID, short, plural, or alternate spelling).
- options: ConvertUnitOptions = {}
  Conversion options.
Returns number | null
The converted value, or null if conversion is not possible (incompatible types, missing conversion factors, or unknown units).
Example
```
convertUnit(1, 'cup', 'milliliter') // ~236.588 (US)
convertUnit(1, 'cup', 'milliliter', { fromSystem: 'imperial' }) // ~284.131
convertUnit(1, 'pound', 'gram') // ~453.592
convertUnit(1, 'cup', 'gram') // null (incompatible types)
```
- Defined in convertUnit.ts:100