@yar.ua/numerals/lib/errors.js

Number to text - Inflector for Ukrainian numerals

export class YarNumBaseError extends Error {
}
export class InternalDataError extends YarNumBaseError {
}
export class InputError extends YarNumBaseError {
    constructor(description) {
        super(`Invalid input: ${description}`);
    }
}
export class RangeError extends YarNumBaseError {
    constructor(digits, max_len) {
        super(`Provided number is too large with ${digits.length} out of ${max_len} digits.`);
    }
}
export function ensureInteger(whole) {
    if (typeof whole === "number") {
        if (isNaN(whole)) {
            throw new InputError("input is not a number");
        }
        whole = whole.toLocaleString("fullwide", { useGrouping: false });
    }
    if (typeof whole !== "string") {
        throw new InputError("input integer should be a string or a number");
    }
    if (!/^[\s\d]*$/.test(whole)) {
        throw new InputError("input is not an integer");
    }
    return whole;
}