Copying a directory's contents in Docker

What this snippet does

COPY of a directory copies its contents, not the directory itself, so /app/src never exists.

Expected output

index.js
utils.js

Why practise typing this

Typing copy & add 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.

More Docker practice

• Copy to a directoryCOPY & ADD · beginner
• Copy with ownershipCOPY & ADD · intermediate
• Copy from another imageCOPY & ADD · intermediate
• ADD unpacks archivesCOPY & ADD · intermediate
• ADD with a remote URLCOPY & ADD · intermediate
• Copying with a wildcardCOPY & ADD · intermediate