What this snippet does
Rest parameters always produce a real array — unlike the old arguments object which is array-like but not an array.
Expected output
6 100 0
Why practise typing this
Typing functions 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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