An XML document may contain comments. They may appear anywhere as long as they are not inside tags. They are even allowed in some locations inside the DTD (e.g., between entity declarations).
XML comments start with the string
“<!--
” and end with the
string “-->
”.
Here are some examples of valid XML comments:
<!-- This is inside the comment -->
<!--This is another comment-->
<!-- This is how you
write multiline comments -->
<p>A simple <!-- Comment inside an element's content --> paragraph.</p>
XML comments may contain any strings
except “--
”:
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