What this snippet does
TextEncoder/Decoder convert between strings and Uint8Array bytes — essential for binary protocols, crypto, and WebSockets.
Expected output
Uint8Array(6) [ 72, 101, 108, 108, 111, 33 ] true Hello! true
Why practise typing this
Typing web apis 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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