error cause in JavaScript

What this snippet does

Error cause (ES2022) lets you wrap errors in higher-level errors while preserving the original — making stack traces much more useful.

Expected output

Failed to fetch user -1
Caused by: ID must be positive
Cause type: RangeError

Why practise typing this

Typing error handling code builds muscle memory for the symbols and indentation JavaScript uses most, which prose-based typing tests never cover. DevType measures your words per minute and accuracy on this snippet and tracks the individual characters you mistype, so later lessons can target them.

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