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01Ask for work you can check 02Read the whole diff 03Keep secrets out of the code 04Treat every input as hostile 05Check who is asking 06Check that it exists 07Make tests able to fail 08Plan for when it breaks

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03Keep secrets out of the code

A config file

Code JavaScript 9 lines

The askYou asked for "a config module that reads settings from the environment." Tick the lines you would not accept. (The key below is a placeholder written for this bench.)

This bench is free.

Tick every line you would not accept. Tap or click the line; you can untick it again.

Tick the lines you would send back.