@lpgera/ts-env/dist/src/numberArray.js

An environment variable reader for TypeScript

export default (key, separator = ',') => {
    const rawValue = process.env[key];
    if (!rawValue) {
        return undefined;
    }
    const numberArray = rawValue.split(separator).map((s) => Number(s));
    if (numberArray.some((n) => isNaN(n))) {
        return undefined;
    }
    return numberArray;
};