What this snippet does
The 'using' keyword (ES2024) automatically calls Symbol.dispose when the block scope ends, ensuring cleanup.
Expected output
inside disposed
Why practise typing this
Typing modern es features code builds muscle memory for the symbols and indentation TypeScript 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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