What this snippet does
Omitting the tag implies :latest, so the same Dockerfile can build against a different runtime tomorrow.
Expected output
v22.11.0
Why practise typing this
Typing dockerfile basics code builds muscle memory for the symbols and indentation Docker 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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