Practice · 2 of 2

Typed Config Loader

Write loadConfig(env) that converts raw env strings into a typed config object: port (number, default 3000 when absent), databaseUrl (string), debug (boolean — true only for exactly the string "true"), and features (array from a comma-separated FEATURES value; absent => []). Throw on a non-numeric PORT rather than silently defaulting.

Difficulty: advanced

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Back to lesson: Practice: Environment Configuration — Practice