Expo Router: find() returns undefined for a dynamic route id

Expo SDK 57, expo-router 57.0.24

There is no error message for this one, only the symptom in the title.

Cause

Everything from the URL is a string. e.id === id compares the number 1 with the string "1" and fails.

Fix

const exercise = exercises.find((e) => e.id === Number(id));

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