"**DUCKS code**" might be a custom, internal, or team-specific convention (e.g., acronym or shorthand) for code commenting or hiding sections of code/content in documentation, configuration files, or scripts. For example:
<!-- DUCKS-HIDE-START --> <p>This content should be hidden or not rendered.</p> <!-- DUCKS-HIDE-END -->
In this case, `DUCKS-HIDE-START` and `DUCKS-HIDE-END` could be parsed by a preprocessor or build tool to **exclude or ignore** this content — similar to how conditional compilation works.
# Hiding Ducks
This appears to be a thing:
YOUTUBE 48mY04dqhNA
There is a discussion about this important topic over at reddit
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