@beesley/ts-env/dist/esm/number-array.js

An environment variable reader for TypeScript

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