The toString and toPlainString methods return an empty string for the input 0, which is incorrect

[se8820726]

I use this library for formatting dollar prices.
Now, if I pass the number 0 as input to the toString() or toPlainString() methods, it returns an empty string '' , which is incorrect and should return $0 .

example:

import { NumberFormatter } from 'reduce-precision';

const formatter = new NumberFormatter({
    language: 'en',
    template: 'usd',
    precision: 'auto',
});

const formattedPrice = formatter.toString(0) //--- returns '' but should return $0

const formattedPrice = formatter.toPlainString(0) //--- returns '' but should return $0