This ViewHelper prevents rendering of any content inside the tag.
Contents of the comment will still be parsed thus throwing an
Exception if it contains syntax errors. You can put child nodes in
CDATA tags to avoid this.
Using this ViewHelper won’t have a notable effect on performance,
especially once the template is parsed. However it can lead to reduced
readability. You can use layouts and partials to split a large template
into smaller parts. Using self-descriptive names for the partials can
make comments redundant.
This is completely hidden.
<f:debug>This does not get rendered</f:debug>
Will be nothing.
This ViewHelper has no arguments.